WO1992004840A1 - Element decoratif en silicium - Google Patents

Element decoratif en silicium Download PDF

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Publication number
WO1992004840A1
WO1992004840A1 PCT/JP1991/001206 JP9101206W WO9204840A1 WO 1992004840 A1 WO1992004840 A1 WO 1992004840A1 JP 9101206 W JP9101206 W JP 9101206W WO 9204840 A1 WO9204840 A1 WO 9204840A1
Authority
WO
WIPO (PCT)
Prior art keywords
silicon
oxide film
color
present
nitride film
Prior art date
Application number
PCT/JP1991/001206
Other languages
English (en)
Japanese (ja)
Inventor
Hideo Kumagai
Kenzo Fujinuki
Itaru Imai
Original Assignee
Komatsu Electronic Metals Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Electronic Metals Co., Ltd. filed Critical Komatsu Electronic Metals Co., Ltd.
Publication of WO1992004840A1 publication Critical patent/WO1992004840A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/007—Special types of gems

Definitions

  • the present invention relates to a decorative article made of crystalline silicon, and more particularly to a decorative article having a spherical or curved surface and obtained by oxidizing the surface.
  • the present invention is intended to solve the above-mentioned problems and to provide a material having excellent decorativeness by coloring the silicon surface without using a coloring agent. It is characterized by an oxide film or nitride film formed on the surface of the silicon. Especially, when mirror-polished silicon is used, the black pearl shines and colors. It is a very effective product. Also, by partially etching the oxide film or nitride film, it is possible to obtain decorative products with new tastes.
  • FIG. 1 is a view showing a color developing principle of an embodiment of a silicon decorative article according to the present invention.
  • FIG. 2 is a diagram showing an example of processing a silicon decorative article according to the present invention. .
  • this oxide film thickness can be partially changed, it is expected that under natural light, interference fringes will appear, giving a beautiful appearance, but the manufacturing process becomes complicated. It is not practical.
  • the decorative article of the present invention does not intentionally make a difference in the oxide film thickness, but since the outer shape is a curved surface, even if the film thickness is uniform, it is effective in the viewing direction. It is considered that the film thickness is different, light interference occurs, and a beautiful color with high decorativeness is exhibited due to the reflection of the background. This is shown in Figure 1.
  • FIG. 1 shows spherical silicon 5 with an oxide film.
  • reference numeral 1 denotes an oxide film.
  • the vertically incident light 2 is totally reflected as it is, but the other incident light is refracted according to Snel II's law.
  • Fig. 1 (b) when the sphere has a diameter of 10mm, up to 70mra in the horizontal direction of the back (substrate 3) reflects off the periphery of the spherical surface. ), And has a central shine 4 and a ring-shaped luminous flux 6.
  • the ring-shaped luster 6 is generated with a width of about 1.5 mm on the periphery of the spherical surface.
  • FIG. 2 shows one processing example of the silicon decorative article of the present invention.
  • Fig. 2 (a) is a spherical one.
  • Fig. 2 (b) shows a cut of a spherical surface, and other decorative items can be attached to the cut surface with an adhesive or the like.
  • Fig. 2 (c) shows that the cut surface of Fig. 2 (b) is provided with a hole of an appropriate depth, so that screws can be fixed to the pedestal or the like.
  • Fig. 2 (d) No to Fig. 2 () has through holes, for example, by connecting a large number of It can also be applied to 'broaching.
  • Oxidation time ⁇ 1 ⁇ 8 minutes 30 seconds
  • the film thickness is 0.2 // ( ⁇ 1) at the lowest and .47 ( ⁇ 6) at the highest.
  • the color of each sample is as shown in the first table.
  • the main difference between the present embodiment and the first and second embodiments of the present invention is that a polycrystalline silicon is used as a silicon material.
  • the sample No. 19 Not 24 was prepared under the same conditions as in Example 2 except for the above.
  • the silicon sphere according to each of the above embodiments has a uniform oxide film thickness, but the spherical surface causes a difference in the apparent film thickness, and is affected by light interference and back reflection. , Will give a beautiful hue.
  • the silicon sphere is partially etched or the operation becomes complicated, but the resist coating is applied and the oxide film is partially removed. If the treatment is carried out with HF, the thickness of the film itself changes, and it is possible to obtain a decorative article with a new taste.
  • the silicon decorative article of the present invention has an extremely beautiful appearance due to the thin oxide film on its surface.
  • the spherical surface whose surface is mirror-finished is slightly naturally obtained in the South Sea. Not only does it have the same appearance as the color, depth, durability and shine of black pearls, but also its value as an imitation, and more. It is a precious stone that exhibits its value as a decorative item.
  • the thickness of the oxide film can be controlled by appropriately selecting the oxidation conditions, it is possible to produce a silicon decorative article having a desired brightness with good reproducibility. For example, when making spherical objects, the processing accuracy is much higher than that which can be produced naturally, rather than naturally produced. However, what is obtained is of sufficient value as a decorative item.
  • the silicon oxide film is the same as so-called quartz, it has high hardness, excellent chemical resistance, heat resistance, etc., and natural pearl, More durable than any other imitation. In the long-term use, the pearl absorbs sweat and deteriorates, and the silicone decoration according to the present invention is stable. In terms of specific gravity, pearls have a power of about 2.9 and silicones have a power of about 2.3, but they do not feel heavy when worn.
  • the silicon surface has a thin, inactive oxide even under normal conditions. Because it is covered with a film, it has no adverse effects on the human body, such as the metal allergies that have recently become a problem.
  • the present invention utilizes the light interference effect of the silicon oxide film, but the same effect can be expected by the nitride film. Since the nitride film has higher hardness and is more stable than the oxide film, it can be used especially as a protective film.

Landscapes

  • Adornments (AREA)
  • Silicon Compounds (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

L'invention se rapporte à une matière en silicium, qui possède des caractéristiques décoratives supérieures tout en développant un effet de couleur sur sa surface de silicium sans l'utilisation d'agent colorant, qui se caractérise par la formation d'un film d'oxyde ou d'un film de nitrure sur sa surface de silicium incurvée, et qui, lorsque l'on utilise du silicium avec un poli miroir, présente notamment d'excellentes propriétés esthétiques supérieures en brillant et en couleur à la perle noire. En appliquant une gravure partielle au film d'oxyde ou au film de nitrure, on obtient un élément décoratif avec une nouvelle esthétique.
PCT/JP1991/001206 1990-09-13 1991-09-11 Element decoratif en silicium WO1992004840A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2/241229 1990-09-13
JP24122990A JPH04122203A (ja) 1990-09-13 1990-09-13 シリコン装飾品

Publications (1)

Publication Number Publication Date
WO1992004840A1 true WO1992004840A1 (fr) 1992-04-02

Family

ID=17071125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1991/001206 WO1992004840A1 (fr) 1990-09-13 1991-09-11 Element decoratif en silicium

Country Status (2)

Country Link
JP (1) JPH04122203A (fr)
WO (1) WO1992004840A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0771892A4 (fr) * 1994-08-01 1997-11-19 Komatsu Denshi Kinzoku Kk Procede de production de silicone decorative

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5002482B2 (ja) * 2008-02-18 2012-08-15 株式会社東芝 炭化ケイ素複合材料及びその製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929032A (ja) * 1982-08-11 1984-02-16 Tsujio Pearl Kogyo Kk 人工真珠の製造法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018317B2 (ja) * 1977-04-20 1985-05-09 松下電器産業株式会社 象嵌模様体およびその形成方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929032A (ja) * 1982-08-11 1984-02-16 Tsujio Pearl Kogyo Kk 人工真珠の製造法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0771892A4 (fr) * 1994-08-01 1997-11-19 Komatsu Denshi Kinzoku Kk Procede de production de silicone decorative

Also Published As

Publication number Publication date
JPH04122203A (ja) 1992-04-22

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