DE69801551D1 - Sinterkeramik auf Basis von Aluminiumoxid und Verfahren zu ihrer Herstellung - Google Patents

Sinterkeramik auf Basis von Aluminiumoxid und Verfahren zu ihrer Herstellung

Info

Publication number
DE69801551D1
DE69801551D1 DE69801551T DE69801551T DE69801551D1 DE 69801551 D1 DE69801551 D1 DE 69801551D1 DE 69801551 T DE69801551 T DE 69801551T DE 69801551 T DE69801551 T DE 69801551T DE 69801551 D1 DE69801551 D1 DE 69801551D1
Authority
DE
Germany
Prior art keywords
production
aluminum oxide
sintered ceramics
ceramics based
sintered
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.)
Expired - Fee Related
Application number
DE69801551T
Other languages
English (en)
Other versions
DE69801551T2 (de
Inventor
Hiroshi Yamamoto
Satoshi Iio
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.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug 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 NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Application granted granted Critical
Publication of DE69801551D1 publication Critical patent/DE69801551D1/de
Publication of DE69801551T2 publication Critical patent/DE69801551T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64Burning or sintering processes
    • C04B35/645Pressure sintering
    • C04B35/6455Hot isostatic pressing
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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
    • C04B35/111Fine ceramics
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232Titanium oxides or titanates, e.g. rutile or anatase
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3239Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3256Molybdenum oxides, molybdates or oxide forming salts thereof, e.g. cadmium molybdate
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54Particle size related information
    • C04B2235/5418Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54Particle size related information
    • C04B2235/5418Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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    • C04B2235/74Physical characteristics
    • C04B2235/78Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
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    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/78Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
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    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/78Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
DE69801551T 1997-06-26 1998-06-26 Sinterkeramik auf Basis von Aluminiumoxid und Verfahren zu ihrer Herstellung Expired - Fee Related DE69801551T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18577997 1997-06-26
JP9361900A JPH1171168A (ja) 1997-06-26 1997-12-10 アルミナ基セラミックス焼結体及びその製造方法

Publications (2)

Publication Number Publication Date
DE69801551D1 true DE69801551D1 (de) 2001-10-11
DE69801551T2 DE69801551T2 (de) 2002-05-29

Family

ID=26503321

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69801551T Expired - Fee Related DE69801551T2 (de) 1997-06-26 1998-06-26 Sinterkeramik auf Basis von Aluminiumoxid und Verfahren zu ihrer Herstellung

Country Status (4)

Country Link
US (2) US6143678A (de)
EP (1) EP0887324B1 (de)
JP (1) JPH1171168A (de)
DE (1) DE69801551T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001322009A (ja) * 1999-12-28 2001-11-20 Ngk Spark Plug Co Ltd アルミナセラミックス切削工具およびその製造方法
JP4620217B2 (ja) * 2000-05-24 2011-01-26 日本特殊陶業株式会社 スパークプラグ用絶縁体及びスパークプラグ
KR20070114757A (ko) 2005-02-23 2007-12-04 케나메탈 아이엔씨. 알루미나-보론 카바이드 세라믹스와, 이를 제조하고이용하는 방법
JP5084155B2 (ja) 2005-03-11 2012-11-28 日本碍子株式会社 アルミナ焼結体及びその製造方法、並びに、このアルミナ焼結体を用いた静電チャック及びその製造方法
JP5188226B2 (ja) * 2007-10-29 2013-04-24 京セラ株式会社 耐摩耗性磁器および摺動部材ならびにポンプ
WO2009057603A1 (ja) * 2007-10-29 2009-05-07 Kyocera Corporation 耐摩耗性磁器および摺動部材ならびにポンプ
CN101842332B (zh) 2007-10-29 2014-05-21 京瓷株式会社 耐磨损性陶瓷及滑动部件以及泵
JP5188225B2 (ja) * 2007-10-29 2013-04-24 京セラ株式会社 快削性磁器および摺動部材ならびにポンプ
JP4983545B2 (ja) * 2007-10-30 2012-07-25 東ソー株式会社 高靭性透光性アルミナ焼結体及びその製造方法並びに用途
JP5458553B2 (ja) * 2008-11-18 2014-04-02 東ソー株式会社 高靭性且つ透光性の着色アルミナ焼結体及びその製造方法並びに用途
WO2010058745A1 (ja) * 2008-11-18 2010-05-27 東ソー株式会社 高靭性且つ高透光性の着色アルミナ焼結体及びその製造方法並びに用途
JP5458552B2 (ja) * 2008-11-18 2014-04-02 東ソー株式会社 高靭性且つ透光性の着色アルミナ焼結体及びその製造方法並びに用途
KR101599984B1 (ko) 2011-03-11 2016-03-04 생-고뱅 세라믹스 앤드 플라스틱스, 인코포레이티드 내화성 물체, 유리 오버플로우 형성 블록, 및 유리 물체의 제조 방법
MY163175A (en) * 2011-03-30 2017-08-15 Saint-Gobain Ceram & Plastics Inc Refractory object, glass overflow forming block, and process of forming and using the refractory object
RU2013148633A (ru) 2011-04-13 2015-05-20 Сэнт-Гобэн Керамикс Энд Пластикс, Инк. Огнеупорное изделие и способ его формования (варианты)
HUE046163T2 (hu) * 2012-01-11 2020-02-28 Saint Gobain Ceramics Tûzálló tárgy
JP5704131B2 (ja) * 2012-07-03 2015-04-22 新日鐵住金株式会社 リジェネレイティブ熱交換器用の蓄熱部材及びこれを用いたリジェネレイティブ熱交換器
CN107257780A (zh) 2015-02-24 2017-10-17 圣戈本陶瓷及塑料股份有限公司 耐火制品和制备方法
CN110903076B (zh) * 2019-12-03 2020-12-25 浙江科奥陶业有限公司 一种通氢钼棒加热炉用刚玉耐火制品及其应用方法
CN116648306A (zh) * 2020-12-29 2023-08-25 圣戈本陶瓷及塑料股份有限公司 陶瓷制品及其制备方法
CN113788689A (zh) * 2021-09-24 2021-12-14 常州大学 一种含钽型高炉陶瓷杯用耐火材料及其制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040183B2 (de) * 1971-12-17 1975-12-22
JPS61256963A (ja) 1985-05-09 1986-11-14 株式会社 リケン 高強度アルミナ焼結体及びその製造方法
JPS63117952A (ja) * 1986-11-07 1988-05-21 呉羽化学工業株式会社 高靭性コランダム−ルチル複合焼結体およびその製造方法
JPS63134551A (ja) 1986-11-25 1988-06-07 東ソー株式会社 アルミナ質焼結体およびその製造法
JPH04239701A (ja) * 1991-01-23 1992-08-27 Citizen Watch Co Ltd 希土類異方性ボンド磁石用合金粉とその製造方法
JPH0687649A (ja) * 1992-01-17 1994-03-29 Toshiba Tungaloy Co Ltd 板状晶アルミナ含有焼結体及びその製造方法
JPH0829975B2 (ja) 1993-12-24 1996-03-27 工業技術院長 アルミナ基セラミックス焼結体
JPH07257963A (ja) * 1994-03-18 1995-10-09 Kobe Steel Ltd 高靱性アルミナセラミックスおよびその製造方法
JPH0867553A (ja) 1994-08-29 1996-03-12 Kyocera Corp 電子銃用アルミナ質焼結体
US5830819A (en) 1994-04-20 1998-11-03 Kyocera Corporation Alumina sintered product
JP3136055B2 (ja) * 1994-09-29 2001-02-19 株式会社堀場製作所 分析装置
JP3279885B2 (ja) * 1995-09-28 2002-04-30 京セラ株式会社 アルミナ質焼結体の製造方法
JP3301914B2 (ja) 1996-04-23 2002-07-15 京セラ株式会社 配線基板

Also Published As

Publication number Publication date
EP0887324A1 (de) 1998-12-30
JPH1171168A (ja) 1999-03-16
DE69801551T2 (de) 2002-05-29
US6143678A (en) 2000-11-07
EP0887324B1 (de) 2001-09-05
US6383963B1 (en) 2002-05-07

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