KR930012639A - 세라믹 소결체의 제조방법 - Google Patents

세라믹 소결체의 제조방법 Download PDF

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Publication number
KR930012639A
KR930012639A KR1019910022700A KR910022700A KR930012639A KR 930012639 A KR930012639 A KR 930012639A KR 1019910022700 A KR1019910022700 A KR 1019910022700A KR 910022700 A KR910022700 A KR 910022700A KR 930012639 A KR930012639 A KR 930012639A
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KR
South Korea
Prior art keywords
sintered body
ceramic
alumina sol
ceramic sintered
ceramic powder
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KR1019910022700A
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English (en)
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KR940005090B1 (ko
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임경란
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박원희
한국과학기술 연구원
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Priority to KR1019910022700A priority Critical patent/KR940005090B1/ko
Priority to US07/975,654 priority patent/US5439851A/en
Priority to JP04351548A priority patent/JP3129870B2/ja
Publication of KR930012639A publication Critical patent/KR930012639A/ko
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Publication of KR940005090B1 publication Critical patent/KR940005090B1/ko

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/624Sol-gel processing
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/117Composites

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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)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)

Abstract

본 발명은 미세구조를 갖는 세라믹 소결체의 제조방법에 관한 것으로, 특히 고분자의 알루미나 졸을 이용하여 세라믹 분말의 코팅을 행하는 기술에 관한 것이다.
본 발명은 일반적인 세라믹 소결체의 제조공정에 있어 세라믹 분말의 혼합시에 초미립상태의 세라믹 분말을 고분자의 알루미나 졸중에 분산시켜 알루미나 졸의 용매를 서서히 제거시킴에 의해서 슬러리의 겔화를 촉진시키는 공정을 수행한 다음 통상의 하소 및 분쇄공정에 이은 압축성형과 소결과정을 통해 세라믹 소결체를 제조하게 된다.
이같은 본 발명의 방법에 의해 제조된 소결체는 미세구조 특성과 소결도가 우수한 효과가 있다.

Description

세라믹 소결체의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (3)

  1. 세라믹 분말의 혼합 및 건조에 이은 하소와 분쇄과정을 거쳐 얻어진 분말을 압축성형하여 고온소결을 행함으로써 세라믹 소결체를 제조하는 방법에 잇어서, 세라믹 분말의 혼합시에 세라믹 분말을 알루미나 졸에 균일분산시켜 세라믹 분말을 알루미나 졸로 코팅함을 특징으로 하는 세라믹 소결체의 제조방법.
  2. 제1항에 있어서, 알루미나 졸중의 알루미나는 세라믹 분말의 10wt%이하인 것을 특징으로 하는 세라믹 소결체의 제조방법.
  3. 제1항에 있어서, 알루미나 졸의 용매를 서서히 제거시킴으로써 슬러리의 겔화를 촉진시킴을 특징으로 하는 세라믹 소결체의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910022700A 1991-12-11 1991-12-11 세라믹 소결체의 제조방법 KR940005090B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019910022700A KR940005090B1 (ko) 1991-12-11 1991-12-11 세라믹 소결체의 제조방법
US07/975,654 US5439851A (en) 1991-12-11 1992-11-13 Process for coating ceramic powder with alumina by sol-gel process and improved densification
JP04351548A JP3129870B2 (ja) 1991-12-11 1992-12-09 セラミック焼結体の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910022700A KR940005090B1 (ko) 1991-12-11 1991-12-11 세라믹 소결체의 제조방법

Publications (2)

Publication Number Publication Date
KR930012639A true KR930012639A (ko) 1993-07-21
KR940005090B1 KR940005090B1 (ko) 1994-06-10

Family

ID=19324598

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Application Number Title Priority Date Filing Date
KR1019910022700A KR940005090B1 (ko) 1991-12-11 1991-12-11 세라믹 소결체의 제조방법

Country Status (3)

Country Link
US (1) US5439851A (ko)
JP (1) JP3129870B2 (ko)
KR (1) KR940005090B1 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01160393A (ja) * 1987-12-17 1989-06-23 Fanuc Ltd 3相誘導電動機の結線切換装置
US6620458B2 (en) * 2001-09-27 2003-09-16 The Regents Of The University Of California Method to produce alumina aerogels having porosities greater than 80 percent
CN101844916B (zh) * 2009-03-26 2013-06-26 日本碍子株式会社 氧化铝烧结体、其制法和半导体制造装置部件
CN101734910B (zh) * 2009-12-04 2012-01-18 沈阳黎明航空发动机(集团)有限责任公司 一种多孔氧化铝陶瓷型芯的制备方法
CN102701725A (zh) * 2012-06-19 2012-10-03 贵州大学 蜂窝状发热陶瓷及其制备方法
CN104107879A (zh) * 2014-04-25 2014-10-22 西安航空动力股份有限公司 陶瓷型芯二次强化方法
CN104003730B (zh) * 2014-05-29 2016-01-20 西安交通大学 一种控制凝胶注模陶瓷零件中温强度的方法
CN108409304A (zh) * 2018-03-06 2018-08-17 济南大学 一种卡波姆凝胶注模成型氧化铝素坯的制备方法
CN111196715B (zh) * 2020-01-09 2022-06-10 山东中和金石新材料科技股份有限公司 利用活性氧化铝球工业固废危废制备惰性氧化铝化工填料的方法
CN113149661A (zh) * 2021-04-27 2021-07-23 中国科学院兰州化学物理研究所 一种高致密氮化硼自润滑复合陶瓷的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944658A (en) * 1972-08-17 1976-03-16 Owens-Illinois, Inc. Transparent activated nonparticulate alumina and method of preparing same
US4429051A (en) * 1981-03-11 1984-01-31 United Kingdom Atomic Energy Authority Ceramic materials by sol-gel route
US4574003A (en) * 1984-05-03 1986-03-04 Minnesota Mining And Manufacturing Co. Process for improved densification of sol-gel produced alumina-based ceramics
US4801399A (en) * 1986-02-25 1989-01-31 University Of Florida Inorganic salts as peptizing agents in the preparation of metal oxide sol-gel compositions
US4788167A (en) * 1986-11-20 1988-11-29 Minnesota Mining And Manufacturing Company Aluminum nitride/aluminum oxynitride/group IVB metal nitride abrasive particles derived from a sol-gel process
US5035724A (en) * 1990-05-09 1991-07-30 Norton Company Sol-gel alumina shaped bodies

Also Published As

Publication number Publication date
KR940005090B1 (ko) 1994-06-10
JPH05254913A (ja) 1993-10-05
JP3129870B2 (ja) 2001-01-31
US5439851A (en) 1995-08-08

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