BR8902159A - Processo para producao de graos de alumina monocristalinos - Google Patents

Processo para producao de graos de alumina monocristalinos

Info

Publication number
BR8902159A
BR8902159A BR898902159A BR8902159A BR8902159A BR 8902159 A BR8902159 A BR 8902159A BR 898902159 A BR898902159 A BR 898902159A BR 8902159 A BR8902159 A BR 8902159A BR 8902159 A BR8902159 A BR 8902159A
Authority
BR
Brazil
Prior art keywords
alumin
monocrystalline
grains
production
monocrystalline alumin
Prior art date
Application number
BR898902159A
Other languages
English (en)
Inventor
Masahiro Tamamaki
Yoshihiro Onoda
Masaru Nozaki
Original Assignee
Japan Abrasive
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 Japan Abrasive filed Critical Japan Abrasive
Publication of BR8902159A publication Critical patent/BR8902159A/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
    • C01F7/021—After-treatment of oxides or hydroxides
    • C01F7/027—Treatment involving fusion or vaporisation
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/20—Aluminium oxides
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B9/00—Single-crystal growth from melt solutions using molten solvents
BR898902159A 1988-05-09 1989-05-09 Processo para producao de graos de alumina monocristalinos BR8902159A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63112233A JPH01282195A (ja) 1988-05-09 1988-05-09 アルミナ質単結晶粒とその製造方法及び研磨具

Publications (1)

Publication Number Publication Date
BR8902159A true BR8902159A (pt) 1990-01-02

Family

ID=14581574

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898902159A BR8902159A (pt) 1988-05-09 1989-05-09 Processo para producao de graos de alumina monocristalinos

Country Status (7)

Country Link
EP (1) EP0342841A1 (pt)
JP (1) JPH01282195A (pt)
CN (1) CN1024459C (pt)
AU (1) AU633000B2 (pt)
BR (1) BR8902159A (pt)
NO (1) NO891851L (pt)
ZA (1) ZA893416B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100390330C (zh) * 2006-09-21 2008-05-28 中国铝业股份有限公司 低温制备片状α－Al2O3单晶颗粒的方法
EP2281782B1 (en) * 2008-04-30 2016-12-07 Denka Company Limited Alumina powder, process for production of the same, and resin compositions containing the same
JP5471398B2 (ja) * 2009-12-16 2014-04-16 日立化成株式会社 エピタキシャル成長用のサファイア単結晶ウエハ及びその製造方法
CN108865063A (zh) * 2018-06-12 2018-11-23 山东鲁信四砂泰山磨料有限公司 氧化铝基磨料及其制备方法
CN110241458A (zh) * 2019-05-24 2019-09-17 淅川正弘单晶刚玉厂 灰白色单晶刚玉的生产方法
CN112725904B (zh) * 2020-12-09 2022-12-13 天通银厦新材料有限公司 蓝宝石晶体的边角料晶壳料的再利用方法
CN114408954B (zh) * 2022-01-26 2023-06-13 株洲科能新材料股份有限公司 一种单晶氧化铝微粉的制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950507A (en) * 1974-03-19 1976-04-13 Boreskov Georgy Konstantinovic Method for producing granulated porous corundum
DE2658124C3 (de) * 1976-12-22 1982-05-06 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Elektroschmelzkorund
DE2850064B1 (de) * 1978-11-18 1980-05-08 Giulini Chemie Hexagonale tafelfoermige alpha-Aluminiumoxid-Einkristalle und Verfahren zu ihrer Herstellung
DE3212297C2 (de) * 1982-03-29 1984-12-13 Schweizerische Aluminium Ag, Chippis Verfahren zur Herstellung grobkristalliner Tonerde

Also Published As

Publication number Publication date
NO891851L (no) 1989-11-10
JPH01282195A (ja) 1989-11-14
CN1040634A (zh) 1990-03-21
CN1024459C (zh) 1994-05-11
JPH0476350B2 (pt) 1992-12-03
NO891851D0 (no) 1989-05-05
AU633000B2 (en) 1993-01-21
ZA893416B (en) 1990-01-31
AU3452589A (en) 1989-11-09
EP0342841A1 (en) 1989-11-23

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FB19 Grant procedure suspended (art. 19)
FA2 Application deemed withdrawn (art. 19(5))
HO Change of classification

Free format text: INT.CL.5 C01F 7/02,C04B 35/10,C30B 29/20