WO2009072832A3 - Procédé de fabrication économique d'un matériau cr2alc fritté présentant une excellente usinabilité - Google Patents

Procédé de fabrication économique d'un matériau cr2alc fritté présentant une excellente usinabilité Download PDF

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Publication number
WO2009072832A3
WO2009072832A3 PCT/KR2008/007197 KR2008007197W WO2009072832A3 WO 2009072832 A3 WO2009072832 A3 WO 2009072832A3 KR 2008007197 W KR2008007197 W KR 2008007197W WO 2009072832 A3 WO2009072832 A3 WO 2009072832A3
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alc
sintered material
powder
present
economical manufacturing
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Ceased
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WO2009072832A2 (fr
Inventor
Sang Whan Park
Dong Yun Lee
Jae Ho Han
Sung Ho Yoon
Gyung Sun Cho
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Korea Institute of Science and Technology KIST
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Korea Institute of Science and Technology KIST
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Publication of WO2009072832A3 publication Critical patent/WO2009072832A3/fr
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    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/5607—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 carbides or oxycarbides based on refractory metal carbides
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    • 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
    • C04B35/56—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 carbides or oxycarbides
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    • 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
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    • 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
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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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    • C04B2235/38—Non-oxide ceramic constituents or additives
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    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
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    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
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    • C04B2235/656—Aspects 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
    • C04B2235/6562—Heating rate
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

La présente invention concerne un procédé de fabrication économique d'un matériau Cr2AlC fritté usinable et, en particulier, un procédé de préparation d'un matériau Cr2AlC fritté. Le procédé consiste (a) à préparer une poudre de carbure de chrome comprenant une phase cristalline de Cr7C3 and Cr3C2 de 95% ou plus en volume par réduction d'une poudre de Cr2O3 de faible coût avec une poudre d'une source de carbone, et (b) à presser à chaud un mélange en poudre fait du carbure de chrome et d'une poudre d'Al. Dans la présente invention, le Cr2O3 de faible coût est utilisé comme matière première, réduisant ainsi de manière remarquable le coût de fabrication par rapport à un procédé classique. De plus, le matériau Cr2AlC fritté préparé selon la présente invention est semblable ou même amélioré par rapport au matériau Cr2AlC fabriqué selon un procédé classique du point de vue de ses propriétés thermiques, mécaniques et électriques et de son usinabilité, et permet ainsi d'élargir les applications du matériau Cr2AlC fritté comme matériau structurel utilisé dans l'industrie.
PCT/KR2008/007197 2007-12-07 2008-12-05 Procédé de fabrication économique d'un matériau cr2alc fritté présentant une excellente usinabilité Ceased WO2009072832A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0126962 2007-12-07
KR1020070126962A KR100882923B1 (ko) 2007-12-07 2007-12-07 기계가공성을 갖는 Ｃｒ₂ＡｌＣ 소결체의 저가 제조방법

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WO2009072832A2 WO2009072832A2 (fr) 2009-06-11
WO2009072832A3 true WO2009072832A3 (fr) 2009-09-03

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WO (1) WO2009072832A2 (fr)

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Publication number Priority date Publication date Assignee Title
CN110371978B (zh) * 2019-07-01 2022-10-11 武汉科技大学 基于铬铝碳的碳化铬-氮化铝复合粉体及其制备方法
CN112605390B (zh) * 2020-10-19 2022-08-26 西安斯瑞先进铜合金科技有限公司 一种利用铬粉制备高温合金用真空级低氮金属铬的制备方法
CN113957431B (zh) * 2021-10-09 2024-04-26 广西壮族自治区特种设备检验研究院 一种等离子熔覆增材制造的max相陶瓷材料及其制备方法
CN115894034A (zh) * 2022-12-08 2023-04-04 北京航空航天大学 铬碳化铝陶瓷的制备方法、铬碳化铝陶瓷和应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232765A (ja) * 1990-02-09 1991-10-16 Kurosaki Refract Co Ltd 高耐食性アルミナカーボン質耐火物
KR100276109B1 (ko) * 1998-10-14 2000-12-15 원창환 자체 연소 반응법을 이용하여 탄화크롬-알루미나 복합분말을 제조하는 방법
KR20040030683A (ko) * 2001-06-21 2004-04-09 산드빅 악티에볼라그 금속 함유 단상 조성물 제조 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03109253A (ja) * 1989-09-19 1991-05-09 Kawasaki Refract Co Ltd カーボン含有不焼成れんがの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232765A (ja) * 1990-02-09 1991-10-16 Kurosaki Refract Co Ltd 高耐食性アルミナカーボン質耐火物
KR100276109B1 (ko) * 1998-10-14 2000-12-15 원창환 자체 연소 반응법을 이용하여 탄화크롬-알루미나 복합분말을 제조하는 방법
KR20040030683A (ko) * 2001-06-21 2004-04-09 산드빅 악티에볼라그 금속 함유 단상 조성물 제조 방법

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KR100882923B1 (ko) 2009-02-10

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