WO2010087092A1 - Céramique pour éléments décoratifs et éléments décoratifs - Google Patents

Céramique pour éléments décoratifs et éléments décoratifs Download PDF

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WO2010087092A1
WO2010087092A1 PCT/JP2009/071319 JP2009071319W WO2010087092A1 WO 2010087092 A1 WO2010087092 A1 WO 2010087092A1 JP 2009071319 W JP2009071319 W JP 2009071319W WO 2010087092 A1 WO2010087092 A1 WO 2010087092A1
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decorative
ceramic
decorative parts
mass
present
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PCT/JP2009/071319
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English (en)
Japanese (ja)
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健一 濱村
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京セラ株式会社
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K87/00—Fishing rods
    • A01K87/04—Fishing-line guides on rods, e.g. tips
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/58007—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides
    • C04B35/58014—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides based on titanium nitrides, e.g. TiAlON
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/16—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on nitrides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3839—Refractory metal carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/405—Iron group metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • C04B2235/9661—Colour

Definitions

  • the present invention relates to a ceramic for decorative parts that produces a golden color tone and a decorative part made of the ceramic for decorative parts.
  • a hard layer that forms a diamond-like carbon (DLC) film by CVD which forms an underlayer on the surface of the substrate and excites the gas into a plasma state.
  • DLC diamond-like carbon
  • CVD Chemical Vapor Deposition
  • the present inventor is composed of a first hard phase containing a nitride of titanium, a second hard phase containing at least one of alumina or zirconia, and a binder phase containing nickel.
  • a ceramic sintered body was proposed. According to this ceramic sintered body, since the first hard phase is protected by the second hard phase and the first hard phase is not detached, it exhibits excellent wear resistance and high hardness.
  • the golden color can give the owner aesthetic satisfaction, luxury and mental comfort.
  • the ceramic sintered body proposed by the present inventor in Patent Document 1 can exhibit excellent wear resistance and high hardness, recently, it has excellent wear resistance and high hardness.
  • it is required to have high rigidity. This is because this high rigidity is necessary to precisely process the ceramic sintered body without being deformed even by a large force applied when processing the ceramic sintered body into a complicated shape.
  • this ceramic sintered body in order to use this ceramic sintered body as a decorative part, it is required to have a golden color tone capable of giving a high-class feeling, aesthetic satisfaction and mental comfort in addition to the above mechanical characteristics. .
  • the present invention has been devised to solve the above-mentioned problems, and has high rigidity in addition to excellent wear resistance and high hardness, and gives a consumer a sense of luxury, aesthetic satisfaction and mental comfort. It is an object of the present invention to provide a ceramic for decorative parts having a golden color tone that can be applied for a long time and a decorative part made of the ceramic for decorative parts.
  • the ceramic for decorative parts of the present invention is characterized in that it contains titanium nitride as a main component and contains at least one selected from the group consisting of aluminum oxide and zirconium oxide, and nickel, chromium, and molybdenum.
  • the fishing line guiding decorative part of the present invention is characterized by comprising the ceramics for decorative part of the present invention having any one of the above-mentioned configurations.
  • the ceramic for decorative parts includes titanium nitride as a main component and at least one selected from the group consisting of aluminum oxide and zirconium oxide and nickel, chromium and molybdenum. At least one of aluminum oxide and zirconium oxide can suppress volume expansion when the titanium nitride crystal grains in the surface layer are oxidized. Thereby, since the degranulation of crystal grains can be suppressed, the wear resistance can be improved. Moreover, since nickel is included, it acts as a binder for firmly bonding the titanium nitride crystal particles to each other, so that fracture toughness and rigidity can be improved.
  • chromium a part of chromium reacts with nickel to produce a nickel chromium compound. Therefore, since nickel becomes difficult to ionize and flow out, the onset of metal allergy can be suppressed. Further, by containing molybdenum, it acts as a binder that firmly bonds the respective crystal grains of titanium nitride, so that the rigidity can be improved.
  • the fishing line guiding decorative part of the present invention made of the ceramic for decorative part of the present invention
  • the fishing line guiding decorative part has high hardness, so that the fine line adhered to the fishing line when guiding the fishing line. Even when rubbed against sand or the like, the surface of the member is hardly damaged, and can be used for a long period of time while maintaining the golden color tone.
  • FIG. 1 It is a figure which shows an example of the fishing line guide ring provided with the fishing ring guide ring and this fishing line guide ring which are the decorative parts for fishing line guide of this invention.
  • A is a perspective view of a fishing line guide ring
  • (b) is a perspective view of a fishing line guide provided with the fishing line guide ring of (a).
  • (A) is the perspective view which looked at the timepiece case from the front side
  • (b) is the perspective view which looked at the timepiece case of (a) from the back side.
  • FIG. 1 is a perspective view showing an example of a fishing line guide ring that is a decorative part for fishing line guide according to the present invention and a fishing rod equipped with the fishing line guide ring. It is a schematic block diagram of the abrasion-resistance evaluation apparatus used for evaluation of the abrasion resistance of the ceramics for decorative parts of this invention.
  • the ceramic for decorative parts of the present invention contains titanium nitride as a main component, and contains at least one selected from the group consisting of aluminum oxide and zirconium oxide, and nickel, chromium and molybdenum.
  • a main component here is a component which occupies 50 mass% or more with respect to 100 mass% of all the components which comprise the ceramics for decorative parts.
  • Titanium nitride which is the main component, exhibits a good golden color tone as a decorative part and has high mechanical properties such as strength and hardness. Therefore, in the ceramic for decorative parts of the present invention,
  • the titanium nitride is preferably contained in a content of 70% by mass or more, preferably 73% by mass or more, and more preferably 77% by mass or more.
  • the wear resistance can be improved.
  • the wear resistance can be improved.
  • nitridation of the surface layer Titanium crystal particles are oxidized.
  • the volume of the ceramic expands, and the ceramic is in a state of being easily degranulated.
  • the ceramic when the ceramic contains nickel, the nickel acts as a binder that firmly bonds the titanium nitride crystal particles to each other, so that fracture toughness and rigidity can be improved.
  • the ceramic when the ceramic contains chromium, the chromium is combined with oxygen in the air to form a dense oxide film on the surface, so that the corrosion resistance can be improved.
  • chromium reacts with nickel which acts as a binder for bonding titanium nitride crystal particles, and the composition is Ni x Cr y (where x and y are 0 ⁇ x ⁇ 1, 0 ⁇ y ⁇ 1 Is produced). Therefore, since nickel can be prevented from ionizing and flowing out, it is possible to suppress causing metal allergy.
  • the molybdenum acts as a binder for firmly bonding the titanium nitride crystal particles to each other like nickel, and the rigidity of the ceramic for decorative parts can be improved.
  • the ceramic for decorative parts of the present invention contains titanium nitride as a main component and includes at least one selected from the group consisting of aluminum oxide and zirconium oxide, and nickel, chromium, and molybdenum. At least one of aluminum oxide and zirconium oxide suppresses the volume expansion when the surface layer titanium nitride crystal particles are oxidized, so that the crystal particles are hardly shattered.
  • the golden color tone exhibited by titanium nitride is at least one white color tone selected from the group consisting of aluminum oxide and zirconium oxide, the silver color tone exhibited by nickel, and the silver white color color exhibited by chromium. And the gray color tone of molybdenum are extremelyly fused, so that a golden color tone with extremely high decorative value can be created.
  • the ceramic when the ceramic contains nickel, fracture toughness and rigidity can be improved. Furthermore, corrosion resistance improves because the said ceramic contains chromium. Thereby, a compound is produced
  • the ceramics for decorative parts of the present invention has excellent wear resistance and fracture toughness, high hardness and rigidity, and a golden color with high decorative value. And can continue to provide mental comfort over a long period of time.
  • the content of at least one selected from the group consisting of aluminum oxide and zirconium oxide is 7% by mass or more and 12% by mass or less, and the content of nickel is 3% by mass or more. 11 mass% or less, the content when chromium is converted into carbide is 1 mass% or more and 5 mass% or less, and the content when molybdenum is converted into carbide is 0.4 mass% or more and 5 mass% or less. Is preferred.
  • the content when chromium and molybdenum are converted into carbide is the content calculated assuming that each composition formula of chromium and molybdenum is chromium carbide and molybdenum carbide represented by Cr 3 C 2 and Mo 2 C, respectively. Means quantity.
  • At least one selected from the group consisting of aluminum oxide and zirconium oxide is 7% by mass or more and 12% by mass or less, the influence on the color tone of the ceramic for decorative parts will not be too great.
  • at least one selected from the group consisting of aluminum oxide and zirconium oxide is sufficiently solid-solved in the titanium nitride crystal particles, and can further suppress the degranulation of the titanium nitride crystal particles. Can be improved.
  • the nickel content is 3% by mass or more and 11% by mass or less, the nickel hardly reduces the hardness of the ceramic for decorative parts. Furthermore, if the nickel content is in the above range, the nickel can act as a binder for firmly bonding the titanium nitride crystal particles to each other, thereby improving fracture toughness and rigidity.
  • chromium reacts with nickel to form a compound, and nickel can be prevented from ionizing and flowing out. Furthermore, vividness can be imparted to the color tone of ceramics for decorative parts.
  • molybdenum acts as a binder that firmly bonds titanium nitride crystal particles to each other, and the ceramic for decorative parts Rigidity and corrosion resistance can be improved without affecting the color tone.
  • the ceramic for decorative parts of the present invention further contains tungsten in a range of 0.8% by mass to 4.5% by mass in terms of carbide.
  • the content when tungsten is converted into a carbide means a content calculated assuming that the composition formula of tungsten is tungsten carbide represented by WC.
  • the ceramic for decorative parts of the present invention further contains manganese in the range of 0.1% by mass to 1% by mass.
  • manganese in the ceramic so that its content falls within this range, the ionization tendency is increased, and the strong oxygen adsorption action suppresses the oxidation of the granules obtained by spray drying, and the color tone of the decorative surface Variation can be suppressed.
  • the ceramic for decorative parts of the present invention is preferably formed with a compound of molybdenum or tungsten, manganese, and carbon.
  • Mo 3 Mn 3 C which is a compound of molybdenum, manganese and carbon or W 3 Mn 3 C which is a compound of tungsten, manganese and carbon is formed.
  • the hardness and rigidity of the ceramic for decorative parts can be improved.
  • the ceramic for decorative parts of the present invention further contains at least one of cobalt and iron in a range of 1% by mass or less.
  • cobalt or iron acts as a binder that firmly bonds titanium nitride crystal particles to each other, and the color tone of ceramics for decorative parts is increased. Rigidity and corrosion resistance can be improved without influencing.
  • the ceramic for decorative parts of the present invention is a watch case or a watch band piece, cobalt and iron have high mass magnetization. Therefore, considering the influence on the movement (drive mechanism), the cobalt content and iron The total content of is preferably 0.5% by mass or less.
  • the ceramic for decorative parts of the present invention it is preferable that a compound comprising cobalt, iron and oxygen is formed.
  • a compound comprising cobalt, iron and oxygen is formed, which is a compound composed of cobalt, iron and oxygen. Therefore, the toughness of the ceramic for decorative parts can be improved, although the reason is not clear.
  • each content of titanium nitride, aluminum oxide, zirconium oxide, chromium carbide, molybdenum carbide, tungsten carbide, nickel, manganese, cobalt and iron constituting the ceramic for decorative parts of the present invention is determined by fluorescent X-ray analysis or ICP. (Inductively Coupled Plasma) It can be determined by emission spectrometry. Specifically, titanium nitride measures the content of Ti metal element and converts it to nitride, and for aluminum oxide and zirconium oxide, the content of Al and Zr metal elements is measured and converted to oxide. Convert it.
  • the content of Cr, Mo, W metal elements may be measured and converted to carbide.
  • the measured value of the metal element of Ni, Mn, Co, and Fe becomes content.
  • titanium nitride no measurement was performed, and the value obtained by subtracting the sum of the contents of aluminum oxide, zirconium oxide, chromium carbide, molybdenum carbide, tungsten carbide, nickel, manganese, cobalt, and iron from 100% by mass was nitrided. It is good also as content of titanium.
  • Mo 3 Mn 3 C and W 3 Mn 3 C which are compounds of molybdenum, manganese and carbon
  • cobalt ferrite Co (1 + z) Fe 2 (1-z) O 4 (where 0 ⁇ z ⁇ 0.04 ) , which is a compound composed of cobalt, iron and oxygen, is also confirmed by the method described above. be able to.
  • the value of the brightness index L * in the CIE 1976 L * a * b * color space of the decorative surface is 60 or more and 70 or less, and the chromaticness index a * and b * is 6 respectively. It is preferable that it is 10 or less and 13 or more and 23 or less. If it is this range, it will become the golden color tone which has moderate brightness and vividness, and it can continue providing a consumer with a high-class feeling, aesthetic satisfaction, and mental comfort over a long period of time.
  • the decorative surface in the ceramic for decorative parts of the present invention refers to a surface that requires a decorative value of the decorative component, and does not need to include a surface that does not require a decorative value. is not.
  • the outer surface of the watch case is a decorative surface because it is an object of appreciation and requires decorative value.
  • the inner surface or the like into which the timepiece driving mechanism is fitted is not a decorative surface because it usually does not require a decorative value.
  • the lightness index L * is an index indicating the lightness and darkness of the color tone.
  • the chromaticness index a * is an index indicating the degree of red to green color tone.
  • the color tone becomes red.
  • the chromaticness index b * is an index indicating the degree of yellow to blue of the color tone.
  • the values of the brightness index L * and the chromaticness indices a *, b * in the CIE 1976 L * a * b * color space of such a decorative surface are obtained by measuring in accordance with JIS Z 8722-2000. It is done.
  • a spectrocolorimeter such as CM-3700d manufactured by Konica Minolta
  • a CIE standard light source D65 is used as a light source
  • a viewing angle is set to 10 °
  • a measurement range is set to 5 mm ⁇ 7 mm.
  • the arithmetic average height (Ra) of the decorative surface affects the reflectance of light and changes the color tone
  • the arithmetic average height (Ra) of the decorative surface is preferably set to 0.03 ⁇ m or less. Thereby, the reflectance of light becomes high and the value of the brightness index L * can be increased.
  • the arithmetic average height (Ra) exceeds 0.03 ⁇ m, the value of the lightness index L * is lowered, the color tone becomes dark, and the high-quality feeling may be lowered.
  • This light is a set of visible light in a wavelength range of 380 to 780 nm.
  • the visible light is dispersed and the blue wavelength range is 450 to 500 nm. Since it acts to reduce the reflection of light and increase the reflection of light in the wavelength range of 570 to 590 nm showing yellow, it can exhibit a golden color that gives a high-class feeling, aesthetic satisfaction, mental comfort, and the like.
  • the reflectance of the decorative surface with respect to light in the wavelength range of 570 to 700 nm is preferably 50% or more.
  • the arithmetic average height (Ra) may be measured in accordance with JIS B 0601-2001, the measurement length and the cut-off value are 5 mm and 0.8 mm, respectively, and a stylus type surface roughness meter is used. For example, a stylus tip radius of 2 ⁇ m is applied to the decorative surface of the decorative part ceramics, and the stylus scanning speed is set to 0.5 mm / second. Further, the average value of the five locations is taken as the value of the arithmetic average height (Ra).
  • the open porosity on the decorative surface affects the value of the lightness index L *.
  • the open porosity on the decorative surface is preferably 2.5% or less, and more preferably 1.1% or less.
  • the open porosity on the decorative surface is obtained by using a metallurgical microscope to capture the image of the decorative surface with a CCD camera at a magnification of 200, and using an image analyzer (such as LUZEX-FS made by Nireco)
  • the measurement area is set to 2.25 ⁇ 10 ⁇ 2 mm 2 and the number of fields of view is set to 20, that is, the area of open pores when the measurement total area is 4.5 ⁇ 10 ⁇ 1 mm 2 is obtained.
  • the ratio may be the open porosity of the decorative surface.
  • the ceramic for decorative parts of the present invention it is preferable that 0.8 ⁇ x ⁇ 0.96 when the composition formula of titanium nitride as a main component is TiN x .
  • the color tone is affected by the value of the number of atoms x when the composition formula is TiN x .
  • the value of the number of atoms x when the composition formula is TiN x is preferably 0.8 or more and 0.96 or less.
  • the decorative component for fishing line guide of the present invention is characterized by comprising the ceramic for decorative component of the present invention having the above-described configuration, and specific examples thereof include a guide ring for fishing line and a fishing line guide equipped with the same. is there.
  • FIG. 1 shows an example of a fishing line guide ring which is a decorative part for fishing line guide according to the present invention and a fishing line guide provided with the fishing line guide ring.
  • FIG. 1A is a plan view of the fishing line guide ring.
  • (B) is a perspective view of the fishing line guide provided with the fishing line guide ring of (a).
  • the fishing line guide ring 1 of the example shown in FIG. 1 is a guide for inserting a fishing line (not shown) on the inner peripheral side thereof, and the fishing line guide 6 includes a fishing line guide ring 1 on a frame 5.
  • the frame 5 includes a holding portion 2 that holds the fishing line guide ring 1, and a support portion 3 of the holding portion 2 and a fixing portion 4 that is fixed to a fishing rod (not shown) are integrally formed. ing.
  • the ceramics can be suitably used for fishing gear.
  • it since it exhibits a golden color tone, it can be used as a fishing tackle preferred by those who want a high-class feeling as a luxury item.
  • the surface of the fishing line guide ring 1 may be covered with a transparent film having high wear resistance, for example, a film made of amorphous hard carbon to further improve the wear resistance.
  • FIG. 2A and 2B show an example of a watch case that is a decorative part for a watch of the present invention.
  • FIG. 2A is a perspective view of the watch case as viewed from the front side
  • FIG. 2B is a watch case of FIG. It is the perspective view which looked at the case from the back side.
  • FIG. 3 is a perspective view showing another example of a watch case which is a decorative part for watch of the present invention.
  • FIG. 4 is a schematic view showing an example of the configuration of a watch band which is a decorative part for watch of the present invention.
  • the same reference numerals are given to the same parts.
  • the watch case 10A of the example shown in FIG. 2 includes a recess 11 for housing a movement (drive mechanism) (not shown) and a foot 12 for fixing a watch band (not shown) for mounting the watch on the arm.
  • the concave portion 11 includes a thin bottom portion 13 and a thick trunk portion 14.
  • the watch case 10B of the example shown in FIG. 3 includes a hole portion 15 in which a movement (drive mechanism) (not shown) enters and a foot portion 12 for fixing a watch band (not shown) for mounting the watch on the arm. And a foot portion 12 formed on the body portion 14.
  • the band piece which comprises the timepiece band 50 of the example shown in FIG. 4 is arrange
  • a tensile strength of 196 N or more is required.
  • the pin is pulled in the direction of separating, What is necessary is just to read the intensity
  • the watch decorative parts of the present invention used as the band pieces constituting the watch cases 10A and 10B and the watch band 50 are made of the ceramics for decorative parts of the present invention. , You can get enough aesthetic satisfaction and you can get mental comfort through vision.
  • FIG. 5 is a perspective view showing an example of a mobile phone using the decorative part for a portable terminal of the present invention
  • FIG. 6 is a perspective view showing a state in which the casing of the mobile phone of the example shown in FIG. 5 is opened. It is.
  • the decorative part for a portable terminal according to the present invention is characterized by comprising the ceramic for decorative part according to the present invention, and specific examples thereof include various keys and cases operated by pressing as shown in FIGS. .
  • a mode key 61a for changing the mode of the mobile phone 60 to a radio mode that is a mode for listening to radio, a music mode that is a mode for listening to music, and the like, and the mobile phone 60 is set to a manner mode.
  • a manner key 61b for the first housing 62 is provided.
  • a touch sensor 63 that detects contact with a finger or the like and inputs an input based on the contact, a camera 64 that captures an image of a subject, a light 65, and a slide switch 66 that sets whether the input of the touch sensor 63 is valid or invalid.
  • a camera 64 that captures an image of a subject
  • a light 65
  • a slide switch 66 that sets whether the input of the touch sensor 63 is valid or invalid.
  • the second casing 67 includes a front case 69a and a rear case 69b, and a liquid crystal display unit 70 is provided in the front case 69a.
  • the first casing 62 also has a front case 71a and a rear case 71b, and the front case 71a is provided with various keys to be operated.
  • This key includes a numeric keypad 72a for inputting a telephone number and the like, a cursor movement key 72b for moving a cursor for various function menus, a call key 72c for starting a call by pressing it when receiving a call, turning on / off the power, and pressing during a call There are a power / end key 72d for ending the call, and function keys 73L, 73R arranged on the left and right of the center key 72f arranged at the center of the cursor movement key 72b.
  • the ceramic for decorative parts of the present invention has good compatibility with other color tones, it can be used in combination with members of various color tones, so that it is possible to meet diversification of consumer preferences.
  • the portable terminal in which the portable terminal of this invention is used is not limited to a mobile telephone, A personal digital assistant (PDA), portable type If the terminal is a portable terminal such as a car navigation system or an audio player and requires decorativeness, various portable terminals are applicable.
  • PDA personal digital assistant
  • FIG. 7 is a schematic diagram showing an example of the configuration of a soap case using the decorative part for daily necessities of the present invention.
  • the soap case 80 includes a main body 83 and a lid 82, and a discharge hole 85 for cutting off water adhering to the surface of the soap 81 is formed on the mounting surface 84 of the soap 81 of the main body 83. .
  • the soap 81 is placed on the placement surface 84 of the main body 83 and is stored by fitting the lid 82 to the main body 83.
  • the lid 82 is removed from the main body 83 and the soap 81 is taken out and used. Then, by placing the used soap 81 on the mounting surface 84 of the main body 83, the water adhering to the surface of the soap 81 can be cut off by the discharge hole 85, and the soap 81 is prevented from melting.
  • main body 83 and the lid 82 which are the soap case 80, with the ceramics for decorative parts of the present invention, satisfaction by possessing by many consumers and high-quality feeling and aesthetic satisfaction through use when visually used And can give mental comfort.
  • FIG. 8 is a perspective view showing an example of a coffee cup set that is a decorative part for daily necessities of the present invention.
  • the coffee cup set 90 shown in FIG. 8 includes a coffee cup 91, a saucer 92, and a spoon 93.
  • a coffee cup 91 By forming the coffee cup 91, the saucer 92, and the spoon 93 with the ceramics for decorative parts of the present invention, many demands are made. It is possible to give a feeling of luxury, aesthetic satisfaction, and mental comfort to the person through the visual sense when using it and when using it.
  • the ceramic for decorative parts of the present invention is compatible with other colors
  • at least one of the coffee cup 91, the saucer 92 or the spoon 93 is composed of the ceramic for decorative parts of the present invention, and the other types are different. It can also be used in combination as a color tone.
  • the decorative part for daily goods of the present invention can be suitably used not only for the soap case 80 and the coffee cup set 90 but also for decorative parts for daily goods such as a brush, razor handle, earpick, and scissors.
  • decorative parts for daily goods such as a brush, razor handle, earpick, and scissors.
  • the use of ceramics for decorative parts of the present invention for amenity goods marked with various logos, etc. provides a sense of luxury, aesthetic satisfaction, and spirituality. Can give peace.
  • FIG. 9 is a perspective view showing an example of a vehicle body to which a vehicle article decorative part of the present invention is attached.
  • FIG. 9 shows the emblem 101 attached to the front of the vehicle body 100, the vehicle body 100 can also be attached to the vehicle body 100 by attaching the emblem 101 such as a manufacturer name or vehicle model name formed of the ceramic for decorative parts of the present invention. 100 decorative values can be increased.
  • FIG. 10 is a front view showing an example of a corner pole using the vehicle article decorative part of the present invention.
  • the corner pole 102 shown in FIG. 10 is attached to mark the left front of the vehicle body (in the case of a right-hand drive vehicle) that is difficult to see from the driver's seat when the vehicle is put in and out of the parking lot. It has the part 103, the pole part 104, and the lighting part 105 which consists of LED etc.
  • the corner pole 102 and the corner pole 102 can be used. This is preferable because the decorative value of the vehicle body is improved.
  • the vehicle decorative part of the present invention includes not only the emblem 101 and the corner pole 102 but also a part of a wheel cap, a part of a hood ornament provided on the hood of the vehicle body, and small items and accessories attached to the interior of the vehicle, or these Even if it is used as a part, the decorative value is improved, which is preferable.
  • FIG. 11 is a front view showing an example of a golf club using the decorative component for sports equipment of the present invention.
  • the golf club 110 shown in FIG. 11 includes a shaft 111, a grip 112 attached to one end of the shaft 111, and a head 113 attached to the other end of the shaft 110.
  • the head 113 has a face surface 113 ⁇ / b> F that is a portion that captures a golf ball and a sole surface 113 ⁇ / b> S that is a portion that contacts the ground.
  • the accessory 114 formed of the ceramic for decorative parts of the present invention is embedded in the face surface 113F because the decorative value is improved.
  • the decorative part for sports goods of the present invention is suitable not only for the face surface 113F but also for the accessory 114 formed of the ceramic for decorative parts of the present invention in the sole surface 113S and the grip 112.
  • FIG. 12 is a bottom view showing an example of spiked shoes using the decorative component for sports equipment of the present invention.
  • a spike shoe 120 shown in FIG. 12 is used for, for example, soccer or rugby, and a plurality of studs 122 formed in a protruding shape for fixing a shaft foot when kicking a ball are attached to a shoe sole 121. ing.
  • the ceramic for decorative parts of the present invention is used as the stud 122, the decorative value is improved and the wear resistance is superior to the conventionally used aluminum alloy stud.
  • the replacement frequency of 122 can be reduced, and the cost of replacement can be reduced.
  • the surface of the stud 122 may be covered with a transparent resin in order to prevent the stud 122 from being broken during the competition.
  • FIG. 13 is a perspective view showing an example of a guitar using the musical instrument decorative part of the present invention.
  • a nut 133 is disposed at the tip of the neck 132, and a tuning beg 135 capable of adjusting the tension of the string 134 is provided for each string 134 in front of the nut 133.
  • a clamp mechanism 136 for holding the string 134 so as not to move with respect to the nut 133 is disposed near the nut 133.
  • a tremolo device 137 for giving an impressive sound effect by simultaneously increasing or decreasing the tension of the string 134 is attached to the main body 131.
  • the tremolo device 137 includes a base plate 138 attached to the main body 131, a bridge saddle 139 that is held by the base plate 138 and holds the string 134 in a tunable manner, and a tremolo bar 140 that operates the tremolo device.
  • the decorative value of the guitar 130 can be improved by forming the base plate 138, the bridge saddle 139, the tremolo bar 140, and the like of the guitar 130 with the ceramics for decorative parts of the present invention. For this reason, while being able to feel satisfaction by owning this guitar 130, many spectators can be attracted.
  • FIG. 14 is a schematic diagram showing an example of an artificial dental crown using the decorative part for accessory of the present invention.
  • FIG. 14 shows an artificial dental crown 141 attached to an abutment (apatment) 144 fixed to an artificial tooth root (implant) 143 embedded in the jawbone 142 inside the gingiva 145.
  • this artificial dental crown 141 By forming this artificial dental crown 141 with the ceramic for decorative parts of the present invention, the teeth emit a golden shine, so that it is possible to give a high euphoria to consumers who prefer dental decorations.
  • the artificial tooth root 143 embedded in the jaw bone 142 is formed in a screw shape, and at least one of chitin, collagen, and derivatives thereof having a high ability to induce the formation of new bone is formed in the screw-shaped portion.
  • a hard bonding layer made of a biodegradable substrate containing seeds may be formed.
  • a soft bonding layer made of the cross-linked biodegradable base material may be formed on the base of the abutment 144 so as to come into contact with the gingiva 145 located on the upper side of the jawbone 142.
  • the ceramic for decorative parts of the present invention is made of a titanium nitride sintered body, it is easily adapted to a living body, and is used not only for the artificial dental crown 141 but also for the artificial dental root 143 and the abutment 144 by taking advantage of this advantage. Is also suitable.
  • FIG. 15 is a front view showing an example of an earphone unit using the decorative component for accessory of the present invention.
  • An earphone unit 150 shown in FIG. 15 is inserted through a speaker 151 that is inserted into a listener's ear shell to generate sound waves, a case 152 that incorporates the speaker 151, and a cord derivation unit 153 that contacts the case 152. And a cord 154 for supplying an electric signal to the speaker 151.
  • the decorative value is increased, and the accessory is designed to give many consumers a sense of quality, aesthetic satisfaction, and mental comfort through vision. It can be a decorative part.
  • FIG. 16 is a perspective view showing an example of eyeglasses using the decorative part for accessory of the present invention.
  • the eyeglasses 160 shown in FIG. 16 includes a pair of lenses 161a and 161b for correcting vision and protecting eyes from ultraviolet rays, a bridge 162 connecting the pair of lenses 161a and 161b, and the lenses 161a and 161b.
  • the armor 163a, 163b connected to 161b, the temples 164a, 164b connected to the armor 163a, 163b so as to be able to rotate via a hinge, and the lenses 161a, 161b via nose pad connecting members, respectively.
  • a nose pad 165 to be attached.
  • the decorative value is increased, and a high-class feeling is visually recognized by many consumers. It can be set as a decorative part for jewelry that gives aesthetic satisfaction and mental comfort.
  • the Vickers hardness and fracture toughness of the ceramic for decorative parts of the present invention can be measured by an indenter press-in method (IF method) defined in JIS R 1610-2003 and JIS R 1607-1995.
  • IF method indenter press-in method
  • the rigidity of the ceramic for decorative parts of the present invention can be confirmed by the value of the dynamic elastic modulus measured by the ultrasonic pulse method specified in JIS R 1602-1995.
  • FIG. 17 is a schematic diagram showing an example of the composite decorative component of the present invention, and is a schematic diagram in plan view of the decorative surface.
  • the composite decorative part 10 shown in FIG. 17 includes a ceramic 11 for decorative parts of the present invention that exhibits a golden color when viewed in plan, and a decorative part 12 having a decorative surface of a color different from that of the ceramic 11 for decorative parts. It is an example of what is arranged side by side.
  • FIG. 17A is a triangular shape
  • FIG. 17B is a square shape
  • FIG. 17C is a parallelogram shape.
  • d) is a combination of a hexagonal shape and a triangular shape
  • (e) is a combination of an octagonal shape and a quadrangular shape
  • (f) is a decorative component surrounding the square-shaped decorative component 12 and the decorative component 12.
  • the combination with ceramics 11 for use is shown.
  • the color tone of the decorative part 12 is purple, it stimulates consumers' willingness to purchase when used in store advertisements and interior goods that require decoration. can do.
  • the color of the decorative component 12 is black, the combination with the golden color of the color of the decorative component ceramic 11 of the present invention increases the visibility and is required to be viewed from a distance, for example, a guide plate. It can be suitably used as a display component. Furthermore, if the color tone of the decorative component 12 is silver, it is possible to enhance the decorativeness that is more luxurious.
  • the decorative part 12 only needs to have a color tone different from that of the decorative part ceramics 11 of the present invention and enhances decorativeness. Therefore, the material is not limited, and the shape and combination of the decorative part ceramics 11 and the decorative part 12 are not limited. Needless to say, these are not limited to the examples shown in FIGS. 17 (a) to 17 (f).
  • FIG. 18 is a perspective view showing an example of a fishing line guide ring which is a decorative part for fishing line guide according to the present invention and a fishing rod provided with the fishing line guide ring.
  • the fishing rod 20 shown in FIG. 18 is also a fishing rod provided with a fishing line guide ring 1a and 1c, and a fishing line guide ring 1b and 1d, each having a purple or black color tone.
  • 1b and 1d may be a fishing line guide ring which is a decorative part for fishing line guide according to the present invention
  • 1a and 1b may be a fishing rod provided with a fishing line guide ring whose color tone is purple or black.
  • the wear resistance of the ceramics for decorative parts of the present invention can be evaluated by preparing a wear resistance evaluation apparatus having the following configuration and using it.
  • FIG. 19 is a schematic configuration diagram of an abrasion resistance evaluation apparatus used for evaluating the abrasion resistance of the ceramic for decorative parts of the present invention.
  • This wear resistance evaluation apparatus 170 is connected to a nylon thread 172, a plurality of pulleys 173 that apply tension to the thread 172 at a predetermined position, and a pulley 173a that is one of the pulleys 173, and the thread 172 is indicated by an arrow.
  • a motor (not shown) that travels in the direction and a water tank 174 that attaches muddy water to the thread 172, is loaded with a weight corresponding to the mass of the weight 175, and the thread 172 that adheres muddy water through the water tank 174 has a predetermined position. It is structured to slide on the outer peripheral surface of a cylindrical decorative part ceramic 171 fixed with a jig (not shown) or the like, and the number of nylon threads 172 may be, for example, 3 .
  • Conditions for evaluating the wear resistance of the ceramic 171 for decorative parts using this wear resistance evaluation apparatus 170 are, for example, that the weight 175 has a mass of 500 g and the thread 172 has a cylindrical shape.
  • the speed at which the outer periphery of the thread 172 is slid is set to 60 m / min, and the traveling distance of the yarn 172 may be set to 3000 m or more.
  • the deepest part of the scratches caused by the wear of the cylindrical decorative part ceramics 171 was observed with a surface shape measurement microscope (measurement unit VF-7510 / controller VF made by Keyence). -7500) and the wear resistance can be evaluated by comparing the measured values.
  • titanium nitride as a main component, at least one of aluminum oxide and zirconium oxide, and nickel, chromium carbide and molybdenum carbide powders are weighed in predetermined amounts and pulverized. ⁇ Mix to make the raw material.
  • titanium nitride powder having an average particle diameter of 10 ⁇ m to 30 ⁇ m, aluminum oxide powder having an average particle diameter of 0.8 ⁇ m to 5 ⁇ m, and zirconium oxide powder having an average particle diameter of 1 ⁇ m to 2 ⁇ m
  • nickel powder having an average particle diameter of 10 ⁇ m or more and 20 ⁇ m or less
  • chromium carbide having an average particle diameter of 3 ⁇ m or more and 10 ⁇ m or less
  • molybdenum carbide having an average particle diameter of 3 ⁇ m or more and 8 ⁇ m or less.
  • At least one of aluminum oxide and zirconium oxide powders is 7% by mass to 12% by mass, nickel powder is 3% by mass to 11% by mass, chromium carbide powder is 1% by mass to 5% by mass, What is necessary is just to weigh, grind
  • a powder of tungsten carbide having an average particle diameter of 1 ⁇ m or more and 3 ⁇ m or less may be added to the blended raw material at 0.8 mass% or more and 4.5 mass% or less.
  • a manganese powder having an average particle size of 13 ⁇ m to 23 ⁇ m or a manganese carbonate powder having an average particle size of 13 ⁇ m to 23 ⁇ m represented by MnCO 3 In the case of using manganese powder, the ratio is 0.2% by mass or more and 2% by mass or less. In the case of using manganese carbonate powder, the ratio is 0.1% by mass. What is necessary is just to add to a preparation raw material as 1 mass% or less above.
  • the metal powder having an average particle diameter of 10 ⁇ m or more and 20 ⁇ m or less is used as a part of the raw material in any case, and the cobalt powder and iron What is necessary is just to add 1 mass% or less of at least any one of these powders to a preparation raw material.
  • the pulverization / mixing time may be increased, for example, the pulverization / mixing time may be 150 hours or longer.
  • silicon, phosphorus, sulfur and the like are listed as inevitable impurities in the blended raw material, but these may adversely affect the color tone of the decorative surface, and therefore it is preferable that each of them is less than 0.5% by mass. is there.
  • the titanium nitride powder may be TiN having a stoichiometric composition or TiN x having a non-stoichiometric composition (0 ⁇ x ⁇ 1).
  • the purity of each powder is preferably 99% or more, and there is no problem even if the titanium nitride powder partially reacts with the nickel powder to produce a small amount of TiNi.
  • the powder of titanium nitride has a composition formula of TiN x In this case, x may satisfy 0.7 ⁇ x ⁇ 0.9.
  • a predetermined amount of paraffin wax is added as a binder, and a desired molding method such as dry pressure molding method, cold static It is formed into a desired shape such as a disk, flat plate, or torus by a hydraulic pressure molding method, extrusion molding method, or the like.
  • the molding pressure affects the open porosity and Vickers hardness (Hv) on the decorative surface, and therefore, the molding pressure is preferably 49 MPa or more and 196 MPa or less. .
  • the molding pressure is preferably 49 MPa or more and 196 MPa or less.
  • the obtained molded body is degreased in a non-oxidizing atmosphere such as a nitrogen atmosphere or an inert gas atmosphere as necessary, and then fired in a nitrogen atmosphere, so that the relative density with respect to the theoretical density is 95% or more.
  • a non-oxidizing atmosphere such as a nitrogen atmosphere or an inert gas atmosphere as necessary
  • the firing in the nitrogen atmosphere is that in the oxidizing atmosphere, the titanium is oxidized and most of the titanium oxide is represented by the composition formula TiO 2 . This is because the color tone of the ceramics for decorative parts becomes whitish due to the influence of the color tone.
  • the firing temperature is 1550 ° C. or higher and 1700 ° C. or lower.
  • a sintered body having a relative density of 95% or more and an open porosity of 2.5% or less can be obtained, and the firing cost can be reduced.
  • the surface of the sintered body is decorated with a golden color tone by performing barrel lapping on the surface where decorative value of the obtained sintered body is required using a lapping machine and then performing barrel polishing.
  • the ceramic for decorative parts of the present invention can be obtained.
  • the pores appearing on such a decorative surface preferably have a maximum diameter of the opening of 30 ⁇ m or less. By setting the maximum system of the opening within this range, it is possible to reduce adhesion of germs, foreign matters, contaminants, etc. into the pores appearing on the decorative surface.
  • the arithmetic average height (Ra) of the surface in order to set the arithmetic average height (Ra) of the surface to be a decorative surface to 0.03 ⁇ m or less, it is sufficient to supply diamond abrasive grains having a small average particle diameter to a lapping machine made of tin and perform lapping.
  • diamond abrasive grains having an average particle diameter of 1 ⁇ m or less may be used.
  • a rotating barrel polishing machine is used, and green carborundum (GC) is introduced into the rotating barrel polishing machine as a medium, and the wet polishing is performed for 24 hours.
  • GC green carborundum
  • the ceramic for decorative parts of the present invention obtained as described above has a high hardness and rigidity, and a golden color tone that can continue to give the owner a sense of luxury, aesthetic satisfaction and mental comfort over a long period of time.
  • decorative parts for fishing line guides such as fishing line guide rings, decorative parts for watches such as watch cases and watch band pieces, and decorations for portable terminals such as various keys and cases operated by pressing.
  • brooches, necklaces, earrings, rings, bracelets, anklets, tie pins, tie tacks, medals, buttons, etc. decorative parts for building materials such as tiles or door handles that decorate floors, walls, ceilings, and religious It can also be suitably used as a decorative member for industrial crafts.
  • TiN titanium nitride
  • Al 2 O 3 aluminum oxide
  • ZrO 2 zirconium oxide
  • Ni nickel
  • Cr 3 C 2 chromium carbide
  • Mo 2 C molybdenum carbide
  • isopropanol as an organic solvent is added to each of the above prepared raw materials, and after pulverizing and mixing for 72 hours using a vibration mill, a binder such as polyethylene glycol is added in an amount of 3% by mass with respect to the prepared raw materials, and then mixed. And then dried into granules. And the obtained granule was filled in the shaping
  • fracture toughness was measured by using an indenter press-in method (IF method) defined in JIS R 1607-1995 using a disk-shaped sintered body.
  • IF method indenter press-in method
  • dynamic elastic modulus was measured by an ultrasonic pulse method defined in JIS R 1602-1995 using a cylindrical sintered body.
  • each content of titanium nitride, aluminum oxide, zirconium oxide, nickel, chromium carbide, and molybdenum carbide constituting these sintered bodies is measured by ICP emission spectroscopy, and Ni is a measured value.
  • Cr and Mo was determined in terms of Cr 3 C 2 and Mo 2 C is a carbide.
  • the obtained cylindrical sintered body was placed in a predetermined position (in FIG. 19, the ceramic 171 for decorative parts was used) using the wear resistance evaluation apparatus shown in FIG. 10g of semi-porcelain soil (clay in which porcelain earth (ceramic stone) is blended in clay) is added to 0.001m 3 of water and mixed to add muddy water into the water tank 174.
  • the mass of the weight 175 is set to 500 g
  • the speed at which the yarn 172 slides on the outer peripheral side of the cylindrical sintered body is set to 60 m / min
  • the traveling distance of the yarn 172 is set to 3000 m, and muddy water adheres.
  • a nylon 172 made of nylon was slid on the outer peripheral side of the cylindrical sintered body. Thereafter, using a surface shape measuring microscope (Measurement Unit VF-7510 / Controller VF-7500, manufactured by Keyence), the thread 172 was slid to observe the scratches caused by the abrasion of the cylindrical sintered body. The results are shown in Table 1.
  • Comparative Example 1 containing no Al 2 O 3 and ZrO 2 was inferior in wear resistance. Moreover, even if Al 2 O 3 or ZrO 2 was contained, Comparative Examples 2 and 3 not containing Ni were inferior in fracture toughness. Further, Comparative Examples 4 and 5 which did not contain Cr 3 C 2 and Mo 2 C even though ZrO 2 and Ni were contained had a small value of dynamic elastic modulus and poor rigidity.
  • TiN Titanium nitride
  • Al 2 O 3 aluminum oxide
  • ZrO 2 zirconium oxide
  • Ni nickel
  • Cr 3 C 2 chromium carbide
  • Mo 2 C molybdenum carbide
  • Example 2 In the same manner as in Example 1, one disk-shaped formed body for each sample and 6 columnar formed bodies were prepared for each sample. These compacts were degreased at 600 ° C. in a nitrogen atmosphere, and then held at 1650 ° C. for 2 hours in a nitrogen atmosphere to obtain a sintered body. Thereafter, the cylindrical sintered body is barrel-polished using a rotating barrel grinder and has a surface with an arithmetic average height (Ra) defined by JIS B 0601-2001 of 0.05 to 0.23 ⁇ m. Sample No. 1 to 39 ceramics for decorative parts of the present invention were obtained.
  • Ra arithmetic average height
  • sample No. 1 was used using the wear resistance evaluation apparatus shown in FIG. (19, the position of the ceramics for decorative component 171) place the ceramics for decorative component of the cylindrical present invention 1-39 was fixed by a jig, the semi-porcelain earth in water 0.001 m 3 ( 10 g of clay containing porcelain earth (ceramic stone) in clay was added and mixed to prepare muddy water in the water tank 174.
  • the weight of the weight 175 is set to 500 g, the speed at which the thread 172 slides is set to 60 m / min, the travel distance of the thread 172 is set to 3000 m, and muddy water is attached to nylon (Toray made silver scale ⁇ 3)
  • the thread 172 was slid on the outer peripheral side of the cylindrical ceramic for decorative parts of the present invention. Thereafter, by using a surface shape measuring microscope (Keyence measuring unit VF-7510 / controller VF-7500), the thread 172 was slid to cause the cylindrical ceramics for decorative parts of the present invention to wear. The deepest part was measured, and the average value of 6 samples was calculated as the wear depth.
  • CM-3700d manufactured by Konica Minolta
  • the CIE standard light source D65 is used as the light source
  • the viewing angle is set to 10 °
  • the measurement range is set to 5 mm ⁇ 7 mm. Then, the color tone of the surface of the disk-shaped ceramic for decorative parts was measured.
  • a questionnaire survey was conducted on 40 monitors, 5 men and women for each age group in their 20s and 50s, with three items: luxury, aesthetic satisfaction, and mental comfort.
  • the percentage of monitors that answered “obtained” is 90% or higher in rank S, and one of the above three items Those with 85% or more and less than 90% are rank A1, 2 items or more and those with 85% or more and less than 90% are rank A2, one item with 80% or more and less than 85% is rank B, and one item is 80 Those with less than% were rated as rank C.
  • the Vickers hardness was measured according to JIS R 1610-2003, and the fracture toughness was measured by an indenter press-in method (IF method) defined in JIS R 1607-1995.
  • the dynamic elastic modulus was measured by an ultrasonic pulse method specified in JIS R 1602-1995.
  • each content of titanium nitride, aluminum oxide, zirconium oxide, nickel, chromium carbide, and molybdenum carbide constituting the ceramic for decorative parts of the present invention is measured by ICP emission spectroscopic analysis. The measured value was the content, Ti was converted to TiN that is a nitride, and Al and Zr were calculated by converting to Al 2 O 3 and ZrO 2 that were oxides. Moreover, Cr and Mo was determined in terms of Cr 3 C 2 and Mo 2 C is a carbide. The results are shown in Table 2.
  • the sample No. 1 to 39 are mainly composed of titanium nitride and contain at least one of aluminum oxide and zirconium oxide and nickel, chromium and molybdenum, so that the hardness is 10.8 GPa or more and the wear depth is 5.1 mm.
  • the fracture toughness was 5.0 MPa ⁇ m 1/2 or more, and the dynamic elastic modulus was 407 GPa or more, which was excellent in characteristics.
  • the results of the questionnaire survey on the monitor showed that the three items of luxury, aesthetic satisfaction and mental comfort were 82.5% or more, indicating that the monitor was satisfied.
  • the content of at least one of aluminum oxide and zirconium oxide is 7% by mass or more and 12% by mass or less, the content of nickel is 3% by mass or more and 11% by mass or less, and the content when chromium is converted into carbide Sample No. having an amount of 1% by mass or more and 5% by mass or less, and a content of 0.4% by mass to 5% by mass when molybdenum is converted into carbide.
  • 2,4,6,8,12,14,16,18,21,23,25,27,29-31,33,35,37,39 are high quality and aesthetic satisfaction in the questionnaire survey results And 3 items of mental comfort became 87.5% or more, and it was found that the monitor was satisfied more.
  • TiN titanium nitride
  • Al 2 O 3 aluminum oxide
  • ZrO 2 zirconium oxide
  • Ni nickel
  • Cr 3 C 2 chromium carbide
  • Mo 2 C molybdenum carbide
  • WC tungsten carbide
  • sample No. 2 was manufactured by the same manufacturing method as in Example 2. 40 to 53 columnar and disk-shaped ceramics for decorative parts of the present invention were obtained.
  • Example 2 Evaluation of wear resistance, measurement of color tone, questionnaire survey to monitor, measurement of Vickers hardness, measurement of fracture toughness, measurement of Young's modulus, titanium nitride, aluminum oxide, oxidation
  • the contents of zirconium, tantalum nitride, nickel, chromium carbide, molybdenum carbide and tungsten carbide were measured. The results are shown in Table 3.
  • a fishing line guide ring a fishing line guide decorative part
  • a watch case a watch case, a watch band piece, and a mobile phone
  • a decorative part for a mobile terminal Various operation keys and cases, soap cases and coffee cup sets that are decorative parts for daily necessities, emblems and corner poles that are decorative parts for vehicle goods, studs for golf club accessories that are parts for sports equipment, studs for spiked shoes, and musical instruments
  • the guitar base plate, which is a decorative part, the artificial crown and the earphone unit case, which is a decorative part for jewelry, and the bridge of eyeglasses, are made with excellent wear resistance, high hardness and rigidity in all cases. Because the surface is hard to be scratched, the golden color can be maintained for a long time. luxury, it was possible to obtain attractive products to continue given over a long period of time the aesthetic satisfaction and mind soothing effect.

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  • Ceramic Products (AREA)

Abstract

La présente invention porte sur une céramique pour des éléments décoratifs, qui présente non seulement une excellente résistance à l'usure et une dureté élevée mais également une rigidité élevée et qui a un ton de couleur doré apte à donner à l'utilisateur un sentiment de luxe, une sensation de satisfaction esthétique et de sérénité mentale pendant une période prolongée. L'invention porte également sur des éléments décoratifs constitués de la céramique. La céramique comprend du nitrure de titane en tant que composant principal et contient au moins un oxyde choisi dans un groupe constitué par l'oxyde d'aluminium et l'oxyde de zirconium, du nickel, du carbure de chrome et du carbure de molybdène. La céramique présente non seulement une excellente résistance à l'usure et une dureté élevée mais également une rigidité élevée et a un ton de couleur doré apte à donner au consommateur un sentiment de luxe, une sensation de satisfaction esthétique et de sérénité mentale pendant une période prolongée. La céramique est appropriée pour être utilisée dans des éléments décoratifs pour des guides de ligne de pêche, des montres, des terminaux mobiles, des objets nécessaires à la vie, des accessoires de voiture, des articles de sport, des instruments de musique et des objets décoratifs personnels.
PCT/JP2009/071319 2009-01-28 2009-12-22 Céramique pour éléments décoratifs et éléments décoratifs WO2010087092A1 (fr)

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JP2022509119A (ja) * 2018-12-07 2022-01-20 ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド 装飾性のセラミックスの物

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JPS5964575A (ja) * 1982-09-30 1984-04-12 京セラ株式会社 金色セラミックス装飾品の製造方法
WO2005093110A1 (fr) * 2004-03-29 2005-10-06 Kyocera Corporation Produit fritté de céramique et procédé de fabrication de celui-ci, et élément décoratif utilisant le produit fritté de céramique
JP2007290939A (ja) * 2006-03-27 2007-11-08 Kyocera Corp 装飾部品用セラミックス
WO2008111652A1 (fr) * 2007-03-13 2008-09-18 Kyocera Corporation Céramique pour pièce décorative, pièce décorative pour montre, pièce décorative pour dispositif portatif, et dispositif portatif

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JPS58181845A (ja) * 1982-04-16 1983-10-24 Ngk Spark Plug Co Ltd 強靭サ−メツト
JP3934751B2 (ja) * 1997-08-28 2007-06-20 京セラ株式会社 金色焼結体
WO2010050493A1 (fr) * 2008-10-29 2010-05-06 京セラ株式会社 Céramique pour des éléments décoratifs et éléments décoratifs

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964575A (ja) * 1982-09-30 1984-04-12 京セラ株式会社 金色セラミックス装飾品の製造方法
WO2005093110A1 (fr) * 2004-03-29 2005-10-06 Kyocera Corporation Produit fritté de céramique et procédé de fabrication de celui-ci, et élément décoratif utilisant le produit fritté de céramique
JP2007290939A (ja) * 2006-03-27 2007-11-08 Kyocera Corp 装飾部品用セラミックス
WO2008111652A1 (fr) * 2007-03-13 2008-09-18 Kyocera Corporation Céramique pour pièce décorative, pièce décorative pour montre, pièce décorative pour dispositif portatif, et dispositif portatif

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022509119A (ja) * 2018-12-07 2022-01-20 ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド 装飾性のセラミックスの物
JP7145330B2 (ja) 2018-12-07 2022-09-30 ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド 装飾性のセラミックスの物

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