ES2060108T3 - Macrocristales de alumina alfa en forma de plaquetas y procedimiento de obtencion. - Google Patents

Macrocristales de alumina alfa en forma de plaquetas y procedimiento de obtencion.

Info

Publication number
ES2060108T3
ES2060108T3 ES90402599T ES90402599T ES2060108T3 ES 2060108 T3 ES2060108 T3 ES 2060108T3 ES 90402599 T ES90402599 T ES 90402599T ES 90402599 T ES90402599 T ES 90402599T ES 2060108 T3 ES2060108 T3 ES 2060108T3
Authority
ES
Spain
Prior art keywords
macrocrystals
alpha alumina
platelets
procedure
obtaining
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES90402599T
Other languages
English (en)
Inventor
Annick Faure
Roland Bachelard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkema France SA
Original Assignee
Elf Atochem SA
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 Elf Atochem SA filed Critical Elf Atochem SA
Application granted granted Critical
Publication of ES2060108T3 publication Critical patent/ES2060108T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C01P2004/22—Particle morphology extending in two dimensions, e.g. plate-like with a polygonal circumferential shape
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Paper (AREA)

Abstract

LA INVENCION TIENE POR OBJETO MACROCRISTALES DE ALUMINIO (ALFA) EN FORMA DE PLAQUITAS HEXAGONALES MONOCRISTALINAS. CONSTA TAMBIEN DE UN PROCESO DE FABRICACION DE ESTOS MACROCRISTALES POR CALCINACION DE ALUMINA, POR EJEMPLO ALUMINA DE TRANSICION, Y EN PRESENCIA DE UN FUNDENTE FLUORADO A UNA TEMPERATURA RELATIVAMENTE BAJA. LOS MACROCRISTALES DE ALUMINA (ALFA) PUEDEN SER UTILIZADOS COMO MATERIALES DE REFUERZO.
ES90402599T 1989-09-21 1990-09-20 Macrocristales de alumina alfa en forma de plaquetas y procedimiento de obtencion. Expired - Lifetime ES2060108T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8912402A FR2652075B1 (fr) 1989-09-21 1989-09-21 Macrocristaux d'alumine alpha sous forme de plaquettes et procede d'obtention.

Publications (1)

Publication Number Publication Date
ES2060108T3 true ES2060108T3 (es) 1994-11-16

Family

ID=9385725

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90402599T Expired - Lifetime ES2060108T3 (es) 1989-09-21 1990-09-20 Macrocristales de alumina alfa en forma de plaquetas y procedimiento de obtencion.

Country Status (15)

Country Link
EP (1) EP0425325B1 (es)
JP (1) JP2564205B2 (es)
KR (1) KR950003419B1 (es)
CN (1) CN1047576C (es)
AT (1) ATE98304T1 (es)
AU (1) AU627933B2 (es)
CA (1) CA2025037A1 (es)
DD (1) DD295885A5 (es)
DE (1) DE69005077T2 (es)
DK (1) DK0425325T3 (es)
ES (1) ES2060108T3 (es)
FR (1) FR2652075B1 (es)
IE (1) IE903320A1 (es)
IL (1) IL95719A0 (es)
NO (1) NO903690L (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9718726B2 (en) 2012-11-07 2017-08-01 Asahi Glass Company, Limited Glass ceramic substrate and portable electronic device housing using the substrate

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU639326B2 (en) * 1990-05-23 1993-07-22 Atochem Ceramic preforms comprising monocrystalline hexagonal platelets of alpha-alumina, their production and applications thereof
HU216722B (hu) * 1992-06-02 1999-08-30 Sumitomo Chemical Co. Ltd. alfa-Alumínium-oxid, eljárás nagytisztaságú szinterelt termékek előállítására, valamint egykristályok növesztésére
CA2099734A1 (en) * 1992-07-01 1994-01-02 Akihiko Takahashi Process for preparing polyhedral alpha-alumina particles
JP3744010B2 (ja) * 1993-06-30 2006-02-08 住友化学株式会社 α−アルミナ粉末の製造方法
EP0656319B1 (en) 1993-11-25 2003-04-09 Sumitomo Chemical Company, Limited Method for producing alpha-alumina powder
FR2715169B1 (fr) * 1994-01-14 1996-04-05 Atochem Elf Sa Macrocristaux renfermant du nitrure d'aluminium sous forme de plaquettes, leur procédé de préparation et leurs utilisations.
JP3416855B2 (ja) * 1994-04-15 2003-06-16 株式会社フジミインコーポレーテッド 研磨用組成物および研磨方法
AU699077B2 (en) * 1995-02-21 1998-11-19 Sumitomo Chemical Company, Limited Alpha-alumina and method for producing the same
FR2734812B1 (fr) * 1995-05-31 1997-07-04 Atochem Elf Sa Procede de preparation de pieces foreuses en ceramique comprenant des plaquettes monocristallines d'alumine alpha
TW460548B (en) * 1998-12-23 2001-10-21 Merck Patent Gmbh Pigment mixture
RU2171226C1 (ru) * 1999-12-28 2001-07-27 Общество с ограниченной ответственностью "Геонанотехнология" Способ получения глинозема
JP4270848B2 (ja) * 2002-11-08 2009-06-03 昭和電工株式会社 アルミナ粒子及びその製造方法
AU2003900030A0 (en) 2003-01-07 2003-01-23 Advanced Nano Technologies Pty Ltd Process for the production of ultrafine plate-like alumina particles
KR100555751B1 (ko) 2004-01-05 2006-03-03 삼성전자주식회사 화상형성장치의 프로세스 카트리지
JP4841851B2 (ja) * 2005-03-02 2011-12-21 電気化学工業株式会社 アルミナ及びその製造方法
CN100348494C (zh) * 2005-08-26 2007-11-14 郑州大学 一种高分散性α－Al2O3纳米粉体的制备方法
JP5211467B2 (ja) * 2006-11-22 2013-06-12 日本軽金属株式会社 多面体形状α−アルミナの製造方法
KR100803049B1 (ko) * 2007-08-31 2008-02-22 (주)제이피에스 마이크로텍 마이크로파를 이용한 박편상의 산화알루미늄 제조방법
DE102009014638A1 (de) 2009-03-24 2010-09-30 Clariant International Ltd. Laminate enthaltend harte, plattenförmige Mineralien
CN104169239A (zh) * 2012-03-09 2014-11-26 旭硝子株式会社 玻璃陶瓷体、层叠体、便携式电子设备用框体和便携式电子设备
US9604852B2 (en) 2012-09-28 2017-03-28 Dic Corporation α-alumina particles and method for manufacturing the same
CN102924092A (zh) * 2012-10-24 2013-02-13 江苏大学 一种高分散片状氧化铝的低成本、无污染制备方法
JP6646864B2 (ja) * 2015-06-01 2020-02-14 Dic株式会社 板状アルミナ粒子の製造方法
CN104925843A (zh) * 2015-06-03 2015-09-23 清华大学 利用复合铝盐制备薄片状α-Al2O3珠光颜料基材的方法
CN108560052B (zh) * 2018-04-26 2020-05-01 闽江学院 一种单晶六方氧化铝的制备方法及其应用
CN113329972B (zh) * 2019-01-25 2022-09-20 Dic株式会社 板状氧化铝颗粒和板状氧化铝颗粒的制造方法
JP6708281B2 (ja) * 2019-03-27 2020-06-10 Dic株式会社 板状アルミナ粒子
EP4041828A4 (en) 2019-10-09 2024-11-13 DIC Corporation Plate-like alumina particle and method for manufacturing plate-like alumina particle
EP4041827A4 (en) * 2019-10-09 2023-07-12 DIC Corporation PLATE-SHAPED ALUMINUM OXIDE PARTICLE AND METHOD FOR PRODUCTION OF PLATE-SHAPED ALUMINUM OXIDE PARTICLES
CN110938862A (zh) * 2019-12-23 2020-03-31 苏州纳迪微电子有限公司 高纯度单晶刚玉粉体及其制备方法
CN114057505B (zh) * 2021-12-13 2023-02-28 西安邮电大学 一种多孔片状氧化铝框架的制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB935390A (en) * 1960-12-20 1963-08-28 Gen Electric Co Ltd Improvements in or relating to the manufacture of corundum crystals
JPS5215498A (en) * 1975-07-28 1977-02-05 Showa Denko Kk Process for production of granular corrundum
DE2623482C2 (de) * 1976-05-26 1985-06-27 Alcoa Chemie GmbH, 6700 Ludwigshafen Verfahren zur Herstellung eines kristallinen Aluminiumoxids für Polier-, Läpp- und Schleifmittel
DE2850064B1 (de) * 1978-11-18 1980-05-08 Giulini Chemie Hexagonale tafelfoermige alpha-Aluminiumoxid-Einkristalle und Verfahren zu ihrer Herstellung
JPS5819640A (ja) * 1981-07-27 1983-02-04 Matsushita Electric Ind Co Ltd 空気調和機等の温度制御装置
JPS6033763A (ja) * 1983-08-05 1985-02-21 Nippon Telegr & Teleph Corp <Ntt> 速度選択通信方式
JPS6054916A (ja) * 1983-09-06 1985-03-29 坂東　尚周 六角薄板状ｄ−Ａｌ↓２Ｏ↓３粒子及びその製造法
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
JP3207739B2 (ja) * 1996-01-19 2001-09-10 松下電器産業株式会社 画像再生装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9718726B2 (en) 2012-11-07 2017-08-01 Asahi Glass Company, Limited Glass ceramic substrate and portable electronic device housing using the substrate

Also Published As

Publication number Publication date
IL95719A0 (en) 1991-06-30
AU6269790A (en) 1991-04-11
JP2564205B2 (ja) 1996-12-18
DD295885A5 (de) 1991-11-14
KR910006145A (ko) 1991-04-27
DK0425325T3 (da) 1994-02-14
JPH03131517A (ja) 1991-06-05
NO903690L (no) 1991-03-22
NO903690D0 (no) 1990-08-22
CA2025037A1 (fr) 1991-03-22
DE69005077T2 (de) 1994-05-26
AU627933B2 (en) 1992-09-03
CN1050366A (zh) 1991-04-03
FR2652075A1 (fr) 1991-03-22
DE69005077D1 (de) 1994-01-20
EP0425325B1 (fr) 1993-12-08
ATE98304T1 (de) 1993-12-15
FR2652075B1 (fr) 1991-12-06
IE903320A1 (en) 1991-04-10
EP0425325A1 (fr) 1991-05-02
CN1047576C (zh) 1999-12-22
KR950003419B1 (ko) 1995-04-12

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