KR890000376A - 미소결정체 알루미나-지지된 세라믹 물품 - Google Patents

미소결정체 알루미나-지지된 세라믹 물품 Download PDF

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KR890000376A
KR890000376A KR1019880006774A KR880006774A KR890000376A KR 890000376 A KR890000376 A KR 890000376A KR 1019880006774 A KR1019880006774 A KR 1019880006774A KR 880006774 A KR880006774 A KR 880006774A KR 890000376 A KR890000376 A KR 890000376A
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iron
alpha
precursor
alumina
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에드워드 우드 토마스
마샬 윌슨 데이비드
진 소우맨 해롤드
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도날드 밀러 셀
미네소타 마이닝 앤드 매뉴팩츄어링 컴패니
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    • C01F7/00—Compounds of aluminium
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    • C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
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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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Abstract

내용 없음

Description

미소결정체 알루미나-지지된 세라믹 물품
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
내용 없음

Claims (12)

  1. 물품의 밀도가 이론적 밀도의 90% 보다 크고, 최소한 60중량%로 구성된 실질적인 알루미나의 모두가, 알파알루미나 결정체의 지름이 0.5㎛미만이고 실질적인 모든 알파알루미나 결정체의 지름이 0.7㎛ 미만인 알파알루미나 결정체로 구성된 균일한 입자구조를 갖는 알파상인 것을 특징으로하는 고체이며 성형되고 소결된, 난연성 물품.
  2. 제1항에 있어서, 0이상 7중량% 당량의 철을 함유하는 물품.
  3. 제2항에 있어서, 최소한 하나의 변형 첨가제를 효과적인 양으로 함유하는 물품.
  4. 제3항에 있어서, 상기 변형 첨가제가 실리카 또는 그의 전구체 또는 금속산화물 또는 그의 전구체인 물품.
  5. 제1항 또는 제3항에 있어서, 파이버, 구슬, 편상, 버블, 분말, 임의-성형된 입자, 연마입자 또는 피복제인 물품.
  6. 물품의 표면적이 15m2/g보다 크고, 최소한 60중량%로 구성된 실질적인 알루미나의 모두가, 실질적인 모든 알파알루미나 결정체의 지름이 0.2㎛ 미만인 알파알루미나 결정체로 구성된 알파상인 것을 특징으로하는 고체이며 성형되고 소결된, 난연성 물품.
  7. 제6항에 있어서, 미세기공의 내부와 실질적으로 농밀한 알파알루미나 외장을 갖는 물품.
  8. a. 염기성 알루미늄염 또는 그외의 가수분해성 알루미나 전구체를 제조하고: b. 상기 용액을 원하는 형 또는 피복으로 형성하고 용액을 겔화 및 건조중의 최소한 하나의 방법에 의하여 고체형으로 산출하고: c. 고체를 해소하고: d. 하소된 고체를 압착하거나 소결하여 알루미나-지지된 세라믹 물품을 형성하기 위한 졸-겔 공정에 있어서, 철-함유 조핵제의 화학적으로 효과적인 양을 건조단계전에 혼합물에 유입시키는 것을 특징으로하는 공정.
  9. 제8항에 있어서, 철-함유 조핵제가 분리된형 또는 콜로이드형으로 물품전구체에 유입되는 공정.
  10. 제9항에 있어서, 철-함유 조핵제가 철염 용액의 가수분해에 의하여 형성된 가수성 철-함유 입자 또는 입자화된 가수성 철 중합체의 형으로 물품전구체에 유입되는 공정.
  11. 제10항에 있어서, 최소한 하나의 변형 첨가제의 효과적인 양을 형성단계앞에 첨가하는 것으로 구성된 공정.
  12. 제11항에 있어서, 상기 첨가제가 실리카, 마그네시아, 질코니아와 그의 전구체에서 선택되는 것으로 구성된 공정.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880006774A 1987-06-05 1988-06-04 미세결정상 알루미나를 주성분으로하는 내화성 물품 및 이의 제조 방법 KR950008593B1 (ko)

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US5856487A 1987-06-05 1987-06-05
US058,564 1987-06-05

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KR890000376A true KR890000376A (ko) 1989-03-14
KR950008593B1 KR950008593B1 (ko) 1995-08-03

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EP (1) EP0294208B1 (ko)
JP (1) JP2756258B2 (ko)
KR (1) KR950008593B1 (ko)
CA (1) CA1317978C (ko)
DE (1) DE3883083T2 (ko)
ES (1) ES2058281T3 (ko)

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US5011508A (en) * 1988-10-14 1991-04-30 Minnesota Mining And Manufacturing Company Shelling-resistant abrasive grain, a method of making the same, and abrasive products
GR1000390B (el) * 1988-11-22 1992-06-30 Comalco Alu Κεραμικες μικροσφαιρες
US4998542A (en) * 1989-02-23 1991-03-12 Philip Morris Incorporated Wrapper for smoking articles and method for preparing same
US5219806A (en) * 1990-07-16 1993-06-15 Minnesota Mining And Manufacturing Company Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents
US5139978A (en) * 1990-07-16 1992-08-18 Minnesota Mining And Manufacturing Company Impregnation method for transformation of transition alumina to a alpha alumina
WO1992001646A2 (en) * 1990-07-16 1992-02-06 Minnesota Mining And Manufacturing Company Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents
US5312791A (en) * 1992-08-21 1994-05-17 Saint Gobain/Norton Industrial Ceramics Corp. Process for the preparation of ceramic flakes, fibers, and grains from ceramic sols
US5725162A (en) * 1995-04-05 1998-03-10 Saint Gobain/Norton Industrial Ceramics Corporation Firing sol-gel alumina particles
US5611829A (en) * 1995-06-20 1997-03-18 Minnesota Mining And Manufacturing Company Alpha alumina-based abrasive grain containing silica and iron oxide
US5645619A (en) * 1995-06-20 1997-07-08 Minnesota Mining And Manufacturing Company Method of making alpha alumina-based abrasive grain containing silica and iron oxide
JP4410850B2 (ja) * 1995-06-20 2010-02-03 スリーエム カンパニー シリカおよび酸化鉄を含有するアルファアルミナをベースとした砥粒
US5728184A (en) * 1996-06-26 1998-03-17 Minnesota Mining And Manufacturing Company Method for making ceramic materials from boehmite
DE19922492A1 (de) 1999-05-14 2000-11-16 Fraunhofer Ges Forschung Verfahren zur Herstellugn von Aluminiumoxiden und daraus hergestellten Produkten
US6499680B2 (en) * 2001-06-01 2002-12-31 Saint-Gobain Ceramics And Plastics, Inc. Grinding media
DE102006020515B4 (de) * 2006-04-29 2008-11-27 Clariant International Limited Nanopartikel aus Aluminiumoxid und Oxiden von Elementen der I. und II. Hauptgruppe des Periodensystems sowie deren Herstellung
DE102005033393B4 (de) 2005-07-16 2014-04-03 Clariant International Limited Verfahren zur Herstellung von nanokristallinem α-Al2O3
DE102006045816A1 (de) * 2006-09-28 2008-04-03 Clariant International Limited Polykristalline Korundfasern und Verfahren zu deren Herstellung
DE102007018147A1 (de) 2007-04-16 2008-10-23 Clariant International Ltd. Spinnmasse zur Herstellung von oxidischen Keramikfasern
DE102007022821B4 (de) 2007-05-15 2013-02-28 Clariant International Ltd. Spinnmasse für die Herstellung von Aluminiumoxid- und Mullitfasern und Verfahren zu deren Herstellung
JP5883227B2 (ja) * 2010-02-25 2016-03-09 ニチアス株式会社 無機繊維
KR20140032377A (ko) * 2011-02-24 2014-03-14 니찌아스 카부시키카이샤 무기 섬유
WO2012114566A1 (ja) * 2011-02-24 2012-08-30 ニチアス株式会社 無機繊維の製造方法

Family Cites Families (6)

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US3808015A (en) * 1970-11-23 1974-04-30 Du Pont Alumina fiber
BE792336Q (fr) * 1971-07-28 1973-06-06 Aluminum Co Of America Production de fibres polycristallines d'alumine
JPS5037806A (ko) * 1973-06-27 1975-04-08
JPS5632369A (en) * 1979-06-29 1981-04-01 Minnesota Mining & Mfg Manufacture of abrasive ore* abrasive ore* claddwork abrasive product* abrasive wheel and nonwoven abrasive product
CA1254238A (en) * 1985-04-30 1989-05-16 Alvin P. Gerk Process for durable sol-gel produced alumina-based ceramics, abrasive grain and abrasive products
AT389884B (de) * 1986-10-03 1990-02-12 Treibacher Chemische Werke Ag Verfahren zur herstellung eines gesinterten schleifmaterials auf der basis von alpha-al2o3

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ES2058281T3 (es) 1994-11-01
DE3883083T2 (de) 1994-03-10
JP2756258B2 (ja) 1998-05-25
EP0294208B1 (en) 1993-08-11
CA1317978C (en) 1993-05-18
DE3883083D1 (de) 1993-09-16
EP0294208A3 (en) 1991-03-20
EP0294208A2 (en) 1988-12-07
KR950008593B1 (ko) 1995-08-03
JPS63319249A (ja) 1988-12-27

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