ATE131143T1 - Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid. - Google Patents

Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid.

Info

Publication number
ATE131143T1
ATE131143T1 AT91915342T AT91915342T ATE131143T1 AT E131143 T1 ATE131143 T1 AT E131143T1 AT 91915342 T AT91915342 T AT 91915342T AT 91915342 T AT91915342 T AT 91915342T AT E131143 T1 ATE131143 T1 AT E131143T1
Authority
AT
Austria
Prior art keywords
aluminum oxide
oxide
germs
inoculation
transitional
Prior art date
Application number
AT91915342T
Other languages
English (en)
Inventor
Thomas E Wood
Original Assignee
Minnesota Mining & Mfg
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
Priority claimed from US07/552,891 external-priority patent/US5139978A/en
Priority claimed from US07/552,489 external-priority patent/US5219806A/en
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Application granted granted Critical
Publication of ATE131143T1 publication Critical patent/ATE131143T1/de

Links

Classifications

    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • C04B35/62231—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on oxide ceramics
    • 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
    • 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
AT91915342T 1990-07-16 1991-06-03 Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid. ATE131143T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/552,891 US5139978A (en) 1990-07-16 1990-07-16 Impregnation method for transformation of transition alumina to a alpha alumina
US07/552,489 US5219806A (en) 1990-07-16 1990-07-16 Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents

Publications (1)

Publication Number Publication Date
ATE131143T1 true ATE131143T1 (de) 1995-12-15

Family

ID=27070047

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91915342T ATE131143T1 (de) 1990-07-16 1991-06-03 Impfen von übergangsaluminiumoxid mit keimen aus chromoxid zur gewinnung von alpha-aluminiumoxid.

Country Status (8)

Country Link
EP (1) EP0539521B1 (de)
JP (1) JPH05509285A (de)
AT (1) ATE131143T1 (de)
AU (1) AU8443091A (de)
BR (1) BR9106645A (de)
CA (1) CA2086552A1 (de)
DE (1) DE69115277T2 (de)
WO (1) WO1992001646A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215552A (en) * 1992-02-26 1993-06-01 Norton Company Sol-gel alumina abrasive grain
JP3560341B2 (ja) * 1992-09-25 2004-09-02 ミネソタ・マイニング・アンド・マニュファクチュアリング・カンパニー アルミナおよびジルコニアを含む砥粒
BR9307095A (pt) * 1992-09-25 1999-03-30 Minnesota Mining & Mfg Processo para preparar grãos de abrasivo
ATE186939T1 (de) * 1992-09-25 1999-12-15 Minnesota Mining & Mfg Seltenes erdoxid enthaltendes schleifkorn
CA2102656A1 (en) * 1992-12-14 1994-06-15 Dwight D. Erickson Abrasive grain comprising calcium oxide and/or strontium oxide
US5690707A (en) * 1992-12-23 1997-11-25 Minnesota Mining & Manufacturing Company Abrasive grain comprising manganese oxide
US5443418A (en) * 1993-03-29 1995-08-22 Norton Company Superabrasive tool
US5593467A (en) * 1993-11-12 1997-01-14 Minnesota Mining And Manufacturing Company Abrasive grain
EP0728123B1 (de) * 1993-11-12 1999-03-31 Minnesota Mining And Manufacturing Company Schleifkorn und verfahren zur herstellung desselben

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH601109A5 (de) * 1976-11-09 1978-06-30 Alusuisse
SU1030314A1 (ru) * 1980-06-10 1983-07-23 Предприятие П/Я А-7125 Способ получени смешанных окислов хрома и алюмини
EP0324513B1 (de) * 1984-01-19 1994-05-11 Norton Company Geformter keramischer Gegenstand und Verfahren zu seiner Herstellung
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
US4829031A (en) * 1986-08-01 1989-05-09 Research Corporation Method of preparing ceramic compositions at lower sintering temperatures
AU604899B2 (en) * 1987-05-27 1991-01-03 Minnesota Mining And Manufacturing Company Abrasive grits formed of ceramic, impregnation method of making the same and products made therewith
CA1317978C (en) * 1987-06-05 1993-05-18 Thomas E. Wood Microcrystalline alumina-based ceramic articles
US4964883A (en) * 1988-12-12 1990-10-23 Minnesota Mining And Manufacturing Company Ceramic alumina abrasive grains seeded with iron oxide
US5009676A (en) * 1989-04-28 1991-04-23 Norton Company Sintered sol gel alumina abrasive filaments

Also Published As

Publication number Publication date
AU8443091A (en) 1992-02-18
WO1992001646A3 (en) 1992-03-05
EP0539521A1 (de) 1993-05-05
DE69115277D1 (de) 1996-01-18
DE69115277T2 (de) 1996-08-08
WO1992001646A2 (en) 1992-02-06
JPH05509285A (ja) 1993-12-22
CA2086552A1 (en) 1992-01-17
BR9106645A (pt) 1993-04-20
EP0539521B1 (de) 1995-12-06

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee