BR8502750A - Processo para producao de corpos de alfa alumina policristalina - Google Patents

Processo para producao de corpos de alfa alumina policristalina

Info

Publication number
BR8502750A
BR8502750A BR8502750A BR8502750A BR8502750A BR 8502750 A BR8502750 A BR 8502750A BR 8502750 A BR8502750 A BR 8502750A BR 8502750 A BR8502750 A BR 8502750A BR 8502750 A BR8502750 A BR 8502750A
Authority
BR
Brazil
Prior art keywords
bodies
alpha alumina
polycrystaline
production
seeding
Prior art date
Application number
BR8502750A
Other languages
English (en)
Inventor
Ralph Bauer
Original Assignee
Norton Co
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 Norton Co filed Critical Norton Co
Publication of BR8502750A publication Critical patent/BR8502750A/pt

Links

Classifications

    • 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

Landscapes

  • 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)
  • Catalysts (AREA)
  • Inorganic Fibers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
BR8502750A 1984-06-14 1985-06-10 Processo para producao de corpos de alfa alumina policristalina BR8502750A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR8502750A true BR8502750A (pt) 1986-02-12

Family

ID=24486801

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8502750A BR8502750A (pt) 1984-06-14 1985-06-10 Processo para producao de corpos de alfa alumina policristalina

Country Status (13)

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

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ210805A (en) * 1984-01-19 1988-04-29 Norton Co Aluminous abrasive grits or shaped bodies
US5383945A (en) * 1984-01-19 1995-01-24 Norton Company Abrasive material and method
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
US5244477A (en) * 1989-04-28 1993-09-14 Norton Company Sintered sol gel alumina abrasive filaments
US5009676A (en) * 1989-04-28 1991-04-23 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
CA2578868C (en) 2004-09-06 2011-04-12 Furukawa Techno Material Co., Ltd. Surfactant-based composition

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
DK248185A (da) 1985-12-15
AU4323885A (en) 1986-01-02
DE3586807T2 (de) 1993-06-03
DK248185D0 (da) 1985-06-03
EP0168606B1 (en) 1992-11-11
DE3586807D1 (de) 1992-12-17
ATE82237T1 (de) 1992-11-15
MX171026B (es) 1993-09-24
ES544124A0 (es) 1986-01-16
JPS6110026A (ja) 1986-01-17
KR860000218A (ko) 1986-01-27
ES8604077A1 (es) 1986-01-16
ZA854133B (en) 1986-05-28
AU552038B2 (en) 1986-05-22
DK172348B1 (da) 1998-04-06
JPH0566325B2 (pt) 1993-09-21
CA1261596A (en) 1989-09-26
EP0168606A3 (en) 1987-09-23
IN164183B (pt) 1989-01-28
EP0168606A2 (en) 1986-01-22
KR890002548B1 (ko) 1989-07-18

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Legal Events

Date Code Title Description
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 10/06/2000