WO2008132157A2 - Keramischer werkstoff - Google Patents

Keramischer werkstoff Download PDF

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Publication number
WO2008132157A2
WO2008132157A2 PCT/EP2008/055055 EP2008055055W WO2008132157A2 WO 2008132157 A2 WO2008132157 A2 WO 2008132157A2 EP 2008055055 W EP2008055055 W EP 2008055055W WO 2008132157 A2 WO2008132157 A2 WO 2008132157A2
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic material
material according
production
ceramic
strontium aluminate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2008/055055
Other languages
German (de)
English (en)
French (fr)
Other versions
WO2008132157A3 (de
Inventor
Meinhard Kuntz
Peter Schröter
Wolfgang Jaschinski
Volker Sommer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceramtec GmbH
Original Assignee
Ceramtec GmbH
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
Priority to BRPI0810501-4A2A priority Critical patent/BRPI0810501A2/pt
Application filed by Ceramtec GmbH filed Critical Ceramtec GmbH
Priority to JP2010504704A priority patent/JP5649959B2/ja
Priority to US12/597,555 priority patent/US8932971B2/en
Priority to CN200880013762.8A priority patent/CN101715435A/zh
Priority to EP08749724A priority patent/EP2150511A2/de
Priority to CA2685455A priority patent/CA2685455C/en
Priority to RU2009143730/03A priority patent/RU2502705C2/ru
Priority to AU2008244310A priority patent/AU2008244310A1/en
Publication of WO2008132157A2 publication Critical patent/WO2008132157A2/de
Publication of WO2008132157A3 publication Critical patent/WO2008132157A3/de
Priority to IL201780A priority patent/IL201780A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111—Fine ceramics
    • C04B35/117—Composites
    • C04B35/119—Composites with zirconium oxide
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • C04B35/6455—Hot isostatic pressing
    • 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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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    • 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
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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    • 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
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/612—Machining
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C04B2235/662—Annealing after sintering
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/785—Submicron sized grains, i.e. from 0,1 to 1 micron
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • 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

Definitions

  • the invention relates to a ceramic material which is particularly suitable for dynamic loads.
  • Ceramic materials offer a variety of applications. Their composition can be tailored by specific addition of certain elements and / or their compounds to the intended use.
  • Aluminum oxide and zirconium oxide, for example, are ceramic materials which are processed individually or in combination with one another inter alia to cutting tools, catalyst supports or prostheses.
  • Ceramic materials are brittle and therefore generally not suitable for dynamic loads, in particular caused by vibrations and shocks.
  • the object of the invention is to introduce a ceramic material which is suitable for dynamic loads.
  • Material with the ability to absorb energy under dynamic load is suitable.
  • this material is particularly suitable for use as
  • Protective ceramics ie for the production of components where an energy absorption is required, such as armor, especially bullet plates.
  • Alumina in a corresponding addition to 100% by weight Dominant structural component of such a combination of materials is the aluminum oxide. Therefore, the property-determining characteristics such as hardness, modulus of elasticity and thermal conductivity are close to the properties of pure aluminum oxide.
  • the constituents zirconium oxide and strontium aluminate are incorporated in the aluminum oxide matrix.
  • the raw materials are preferably used in high purity. Due to the high purity of the raw materials, grain boundary phases are formed only to an extremely small extent.
  • the strontium aluminate forms characteristic platelet-shaped crystallites, platelets, which contribute significantly to increasing the strength.
  • the constituents zirconium oxide and strontium aluminate contribute to increasing the fracture toughness, which is about 60% higher than with pure aluminum oxide.
  • the strength is increased almost by a factor of 2
  • the damage tolerance that is, the property of the component, even with a possible damage still retain a high residual strength.
  • the crack path is surprisingly deflected, so that additional energy is absorbed in the crack propagation.
  • a peculiarity of the material according to the invention is to be considered that the two mechanisms mutually reinforce, so that the effective increase in the fracture toughness is even greater than would be expected by simple addition of the individual mechanisms.
  • a preferred material composition with its properties is listed below:
  • Al 2 O 3 The content of Al 2 O 3 supplements from 72.65 wt .-% to 74.54 wt .-%. Commodity related contaminants ( ⁇ 0.05% by weight) are possible but not listed separately because of their minority.
  • the production of sintered bodies from the material according to the invention takes place by means of conventional ceramic technology.
  • the main process steps are:
  • the properties of the sintered shaped body made of the material according to the invention can still be reinforced by incorporation. It is thus possible to mix whiskers and / or fibers into the material before the formation of a sintered body or to incorporate reticulated structures or fabrics into the material in the green state.
  • the whiskers, fibers or nets or webs must be made of a material that does not interact with the ceramic material in such a way that deterioration of its properties occurs. In addition, the material must not change during sintering in such a way that the material is damaged.
  • Sinterform body which are made of the material according to the invention, surprisingly combine the best properties of each of the competing ceramic materials alumina and zirconia, especially for use as a protective ceramic in itself: hardness, aging resistance, water wetting behavior and high thermal conductivity are properties High strength and high fracture toughness, that is damage tolerance, are properties known from sintered bodies of zirconia.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
PCT/EP2008/055055 2007-04-27 2008-04-25 Keramischer werkstoff Ceased WO2008132157A2 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AU2008244310A AU2008244310A1 (en) 2007-04-27 2008-04-25 Ceramic material
JP2010504704A JP5649959B2 (ja) 2007-04-27 2008-04-25 セラミック材料
US12/597,555 US8932971B2 (en) 2007-04-27 2008-04-25 Ceramic material
CN200880013762.8A CN101715435A (zh) 2007-04-27 2008-04-25 陶瓷材料
EP08749724A EP2150511A2 (de) 2007-04-27 2008-04-25 Keramischer werkstoff
BRPI0810501-4A2A BRPI0810501A2 (pt) 2007-04-27 2008-04-25 Material cerâmico
RU2009143730/03A RU2502705C2 (ru) 2007-04-27 2008-04-25 Керамический материал
CA2685455A CA2685455C (en) 2007-04-27 2008-04-25 Ceramic material
IL201780A IL201780A (en) 2007-04-27 2009-10-27 Ceramic material and its use for the manufacture of coatings for armor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007020470.3 2007-04-27
DE102007020470 2007-04-27

Publications (2)

Publication Number Publication Date
WO2008132157A2 true WO2008132157A2 (de) 2008-11-06
WO2008132157A3 WO2008132157A3 (de) 2009-01-08

Family

ID=39512699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/055055 Ceased WO2008132157A2 (de) 2007-04-27 2008-04-25 Keramischer werkstoff

Country Status (11)

Country Link
US (1) US8932971B2 (https=)
EP (1) EP2150511A2 (https=)
JP (1) JP5649959B2 (https=)
CN (2) CN101715435A (https=)
AU (1) AU2008244310A1 (https=)
BR (1) BRPI0810501A2 (https=)
CA (1) CA2685455C (https=)
DE (1) DE102008001374A1 (https=)
IL (1) IL201780A (https=)
RU (1) RU2502705C2 (https=)
WO (1) WO2008132157A2 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011083023A1 (de) * 2009-12-16 2011-07-14 Ceramtec Gmbh Keramischer verbundwerkstoff, bestehend aus den hauptbestandteilen aluminiumoxid und zirkonoxid und einer dispersoiden phase
US9795709B2 (en) 2009-12-16 2017-10-24 Ceramtec Gmbh Ceramic composite material consisting of aluminium oxide and zirconium oxide as main constitutents

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US9416055B2 (en) 2012-06-22 2016-08-16 Imerys Ceramics France Ceramic compositions comprising alumina
CN103539435A (zh) * 2013-09-29 2014-01-29 陈春水 一种适用于动态负荷的陶瓷材料
CN104529402A (zh) * 2014-12-20 2015-04-22 佛山铭乾科技有限公司 一种陶瓷浴盆
EA027824B1 (ru) * 2015-01-29 2017-09-29 Общество с ограниченной ответственностью "НЭВЗ-Н" Керамический материал и способ его получения
EP3354632A1 (en) * 2017-01-25 2018-08-01 Siemens Aktiengesellschaft Method to additively manufacture a fiber-reinforced ceramic matrix composite
CN108975933A (zh) * 2018-09-18 2018-12-11 广东蓝狮医疗科技有限公司 一种石墨增强耐磨损氧化铝-氧化锆复合陶瓷及其制备方法
RU189195U1 (ru) * 2018-11-12 2019-05-15 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Новосибирский Государственный Технический Университет" Керамический композиционный материал

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* Cited by examiner, † Cited by third party
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WO2011083023A1 (de) * 2009-12-16 2011-07-14 Ceramtec Gmbh Keramischer verbundwerkstoff, bestehend aus den hauptbestandteilen aluminiumoxid und zirkonoxid und einer dispersoiden phase
CN102869635A (zh) * 2009-12-16 2013-01-09 陶瓷技术有限责任公司 由主成分氧化铝和氧化锆以及弥散体相组成的陶瓷复合材料
CN102869635B (zh) * 2009-12-16 2015-12-09 陶瓷技术有限责任公司 由主成分氧化铝和氧化锆以及弥散体相组成的陶瓷复合材料
US9630883B2 (en) 2009-12-16 2017-04-25 Ceramtec Gmbh Ceramic composite material consisting of aluminium oxide and zirconium oxide as the main constituents, and a dispersoid phase
US9795709B2 (en) 2009-12-16 2017-10-24 Ceramtec Gmbh Ceramic composite material consisting of aluminium oxide and zirconium oxide as main constitutents

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RU2502705C2 (ru) 2013-12-27
JP5649959B2 (ja) 2015-01-07
US8932971B2 (en) 2015-01-13
RU2009143730A (ru) 2011-06-10
CN104628363A (zh) 2015-05-20
IL201780A (en) 2016-06-30
AU2008244310A1 (en) 2008-11-06
WO2008132157A3 (de) 2009-01-08
BRPI0810501A2 (pt) 2014-10-14
DE102008001374A1 (de) 2008-10-30
JP2010524832A (ja) 2010-07-22
CA2685455A1 (en) 2008-11-06
US20100120605A1 (en) 2010-05-13
CA2685455C (en) 2016-01-12
EP2150511A2 (de) 2010-02-10
CN101715435A (zh) 2010-05-26

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