KR860000218A - 다결정 알파 알루미나체(體)의 제조방법 - Google Patents

다결정 알파 알루미나체(體)의 제조방법 Download PDF

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Publication number
KR860000218A
KR860000218A KR1019850004067A KR850004067A KR860000218A KR 860000218 A KR860000218 A KR 860000218A KR 1019850004067 A KR1019850004067 A KR 1019850004067A KR 850004067 A KR850004067 A KR 850004067A KR 860000218 A KR860000218 A KR 860000218A
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KR
South Korea
Prior art keywords
alumina
alpha alumina
less
alumina body
polycrystalline alpha
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KR1019850004067A
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English (en)
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KR890002548B1 (ko
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바우어 랠프
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원본미기재
노튼 캄파니
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Application filed by 원본미기재, 노튼 캄파니 filed Critical 원본미기재
Publication of KR860000218A publication Critical patent/KR860000218A/ko
Application granted granted Critical
Publication of KR890002548B1 publication Critical patent/KR890002548B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1409—Abrasive particles per se
    • C09K3/1418—Abrasive particles per se obtained by division of a mass agglomerated by 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
    • 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
    • C04B35/1115—Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Powder Metallurgy (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Fibers (AREA)
  • Catalysts (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

내용 없음

Description

다결정 알파 알루미나체(體)의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (7)

  1. 분산성 알루미나 수화물 분말, 마이크론 이하 단위의 알파 알루미나 접종물질 및 산을 25%이상의 고체함량으로 혼합시키고, 이 혼합물을 가압시킨 다음, 생성되는 기공율이 10%미만인 소지(素地)를 연소시킴을 특징으로 하는 분산성 알루미나 수화물 분말로 부터 마이크론 이하단위의 결정크기를 갖는 다결정 알파 알루미나체의 제조방법.
  2. 제1항에 있어서, 성형 및 연소시키기 전에 알루미나 수화물을 열수처리함을 특징으로 하는 방법.
  3. 제1항 또는 제2항에 있어서, 전술한 혼합물에 압출다이의 수단에 의해 압력을 가함을 특징으로 하는 방법.
  4. 제1항 내지 제3항 중 어느 하나의 항에 있어서, 혼합조작시 압력을 적용시킴을 특징으로 하는 방법.
  5. 제1항 내지 제4항 중 어느 하나의 항에 있어서, 생성되는 알루미나체의 경도가 16GPa이상임을 특징으로 하는 방법.
  6. 제1항 내지 제5항 중 어느 하나의 항에 있어서, 생성되는 알루미나체의 밀도가 이론치의 97%이상임을 특징으로 하는 방법.
  7. 제1항 내지 제6항 중 어느 하나의 항에 있어서, 접종물질을 원료 고형물의 5중량%미만의 양으로 합유시킴을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.
KR1019850004067A 1984-06-14 1985-06-10 다결정 알파 알루미나체(體)의 제조방법 KR890002548B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62065484A 1984-06-14 1984-06-14
US620654 1984-06-14

Publications (2)

Publication Number Publication Date
KR860000218A true KR860000218A (ko) 1986-01-27
KR890002548B1 KR890002548B1 (ko) 1989-07-18

Family

ID=24486801

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850004067A KR890002548B1 (ko) 1984-06-14 1985-06-10 다결정 알파 알루미나체(體)의 제조방법

Country Status (13)

Country Link
EP (1) EP0168606B1 (ko)
JP (1) JPS6110026A (ko)
KR (1) KR890002548B1 (ko)
AT (1) ATE82237T1 (ko)
AU (1) AU552038B2 (ko)
BR (1) BR8502750A (ko)
CA (1) CA1261596A (ko)
DE (1) DE3586807T2 (ko)
DK (1) DK172348B1 (ko)
ES (1) ES8604077A1 (ko)
IN (1) IN164183B (ko)
MX (1) MX171026B (ko)
ZA (1) ZA854133B (ko)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383945A (en) * 1984-01-19 1995-01-24 Norton Company Abrasive material and method
NZ210805A (en) * 1984-01-19 1988-04-29 Norton Co Aluminous abrasive grits or shaped bodies
JPS6126554A (ja) * 1984-07-18 1986-02-05 川崎製鉄株式会社 セラミツク焼結体の製造方法
US5204300A (en) * 1984-07-18 1993-04-20 Kawasaki Steel Corporation Methods of seeding sintered objects
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
FI79830C (fi) * 1985-07-15 1990-03-12 Norddeutsche Schleifmittel Ind Foerfarande foer framstaellning av keramiskt polykristallint slipmaterial.
AT389882B (de) * 1986-06-03 1990-02-12 Treibacher Chemische Werke Ag Verfahren zur herstellung eines mikrokristallinen schleifmaterials
US5225229A (en) * 1986-07-18 1993-07-06 Aluminum Company Of America Aluminum hydroxide production
US4847064A (en) * 1987-12-23 1989-07-11 Aluminum Company Of America Economical process for alpha alumina production
KR910009894B1 (ko) * 1987-03-26 1991-12-03 도도 기끼 가부시끼가이샤 세라믹스 제품 및 그 제조방법
JPS6433055A (en) * 1987-07-27 1989-02-02 Sumitomo Cement Co Sintered body of alumina having high strength and its production
US5009676A (en) * 1989-04-28 1991-04-23 Norton Company Sintered sol gel alumina abrasive filaments
US5244477A (en) * 1989-04-28 1993-09-14 Norton Company Sintered sol gel alumina abrasive filaments
US5090968A (en) * 1991-01-08 1992-02-25 Norton Company Process for the manufacture of filamentary abrasive particles
DE4109264A1 (de) * 1991-03-21 1992-09-24 Schepers Bernhard H Dr Verfahren zum herstellen von aluminiumoxid zum schleifen und/oder polieren aus aluminiumhydroxid
US5178849A (en) * 1991-03-22 1993-01-12 Norton Company Process for manufacturing alpha alumina from dispersible boehmite
DE4113476A1 (de) * 1991-04-25 1992-10-29 Huels Chemische Werke Ag Polykristalline, gesinterte schleifkoerner auf basis von alpha-al(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts), verfahren zu ihrer herstellung und deren verwendung
US5641469A (en) * 1991-05-28 1997-06-24 Norton Company Production of alpha alumina
US5304331A (en) * 1992-07-23 1994-04-19 Minnesota Mining And Manufacturing Company Method and apparatus for extruding bingham plastic-type materials
DE19503854C2 (de) * 1995-02-06 1997-02-20 Starck H C Gmbh Co Kg Verfahren zur Herstellung gesinterter alpha-Al¶2¶O¶3¶-Körper sowie deren Verwendung
US5728184A (en) * 1996-06-26 1998-03-17 Minnesota Mining And Manufacturing Company Method for making ceramic materials from boehmite
DE19629690C2 (de) * 1996-07-23 1999-08-05 Korund Laufenburg Gmbh Verfahren zur Herstellung gesinterter alpha-AL¶2¶0¶3¶-Körper sowie deren Verwendung
JP4635223B2 (ja) 2004-09-06 2011-02-23 株式会社古河テクノマテリアル 界面活性剤系組成物

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108888A (en) * 1960-08-04 1963-10-29 Du Pont Colloidal, anisodiametric transition aluminas and processes for making them
GB1175887A (en) * 1967-05-31 1970-01-01 Gen Electric & English Elect Improvements in or relating to the Manufacture of Articles of High Density Polycrystalline Refractory Oxide Material
BR7902063A (pt) * 1979-04-04 1980-10-21 Colorobbia Brasileira Prod Par Processo de obtencao de pecas moldadas ou conformadas,com alto teor de oxido de aluminio cristalino resistentes a corrosao,a abrasao e desgaste por solicitacao mecanicas e temperaturas aumentadas
US4314827A (en) * 1979-06-29 1982-02-09 Minnesota Mining And Manufacturing Company Non-fused aluminum oxide-based abrasive mineral
US4379134A (en) * 1981-02-13 1983-04-05 Union Carbide Corporation Process of preparing high purity alumina bodies
JPS5983932A (ja) * 1982-09-23 1984-05-15 ステンカ−・コ−ポレ−シヨン 高純度アルミナ粒子の製造法

Also Published As

Publication number Publication date
EP0168606A2 (en) 1986-01-22
ZA854133B (en) 1986-05-28
IN164183B (ko) 1989-01-28
BR8502750A (pt) 1986-02-12
DE3586807T2 (de) 1993-06-03
DK172348B1 (da) 1998-04-06
ES8604077A1 (es) 1986-01-16
AU4323885A (en) 1986-01-02
ATE82237T1 (de) 1992-11-15
EP0168606A3 (en) 1987-09-23
CA1261596A (en) 1989-09-26
EP0168606B1 (en) 1992-11-11
JPH0566325B2 (ko) 1993-09-21
DK248185D0 (da) 1985-06-03
ES544124A0 (es) 1986-01-16
MX171026B (es) 1993-09-24
DE3586807D1 (de) 1992-12-17
AU552038B2 (en) 1986-05-22
JPS6110026A (ja) 1986-01-17
DK248185A (da) 1985-12-15
KR890002548B1 (ko) 1989-07-18

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