DE69005077D1 - Plättchenförmige alpha-Aluminiumoxidmakrokristalle und Verfahren zu ihrer Herstellung. - Google Patents
Plättchenförmige alpha-Aluminiumoxidmakrokristalle und Verfahren zu ihrer Herstellung.Info
- Publication number
- DE69005077D1 DE69005077D1 DE90402599T DE69005077T DE69005077D1 DE 69005077 D1 DE69005077 D1 DE 69005077D1 DE 90402599 T DE90402599 T DE 90402599T DE 69005077 T DE69005077 T DE 69005077T DE 69005077 D1 DE69005077 D1 DE 69005077D1
- Authority
- DE
- Germany
- Prior art keywords
- macrocrystals
- alumina
- platelet
- production
- shaped alpha
- 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 - Fee Related
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)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (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)
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 (2)
Publication Number | Publication Date |
---|---|
DE69005077D1 true DE69005077D1 (de) | 1994-01-20 |
DE69005077T2 DE69005077T2 (de) | 1994-05-26 |
Family
ID=9385725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69005077T Expired - Fee Related DE69005077T2 (de) | 1989-09-21 | 1990-09-20 | Plättchenförmige alpha-Aluminiumoxidmakrokristalle und Verfahren zu ihrer Herstellung. |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0425325B1 (de) |
JP (1) | JP2564205B2 (de) |
KR (1) | KR950003419B1 (de) |
CN (1) | CN1047576C (de) |
AT (1) | ATE98304T1 (de) |
AU (1) | AU627933B2 (de) |
CA (1) | CA2025037A1 (de) |
DD (1) | DD295885A5 (de) |
DE (1) | DE69005077T2 (de) |
DK (1) | DK0425325T3 (de) |
ES (1) | ES2060108T3 (de) |
FR (1) | FR2652075B1 (de) |
IE (1) | IE903320A1 (de) |
IL (1) | IL95719A0 (de) |
NO (1) | NO903690L (de) |
Families Citing this family (30)
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 |
WO1993024681A1 (en) * | 1992-06-02 | 1993-12-09 | Sumitomo Chemical Company, Limited | α-ALUMINA |
CA2099734A1 (en) * | 1992-07-01 | 1994-01-02 | Akihiko Takahashi | Process for preparing polyhedral alpha-alumina particles |
RU2136596C1 (ru) | 1993-11-25 | 1999-09-10 | Сумитомо Кемикал Компани, Лимитед | СПОСОБ ПОЛУЧЕНИЯ ПОРОШКА α--ОКСИДА АЛЮМИНИЯ И ПОРОШОК α--ОКСИДА АЛЮМИНИЯ |
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 |
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 |
JPWO2013133300A1 (ja) * | 2012-03-09 | 2015-07-30 | 旭硝子株式会社 | ガラスセラミックス体、積層体、携帯型電子機器用筐体、および携帯型電子機器 |
JP5720848B2 (ja) * | 2012-09-28 | 2015-05-20 | Dic株式会社 | 多面体形状のα−アルミナ微粒子の製造方法 |
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 |
JP6229661B2 (ja) * | 2012-11-07 | 2017-11-15 | 旭硝子株式会社 | ガラスセラミックス基板およびこの基板を用いた携帯型電子機器用筐体 |
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 |
US20220081310A1 (en) * | 2019-01-25 | 2022-03-17 | Dic Corporation | Tabular alumina particle and method for manufacturing tabular alumina particle |
JP6708281B2 (ja) * | 2019-03-27 | 2020-06-10 | Dic株式会社 | 板状アルミナ粒子 |
EP4041828A1 (de) | 2019-10-09 | 2022-08-17 | DIC Corporation | Plattenförmiges aluminiumoxidteilchen und verfahren zum herstellen von plattenförmigen aluminiumoxidteilchen |
US20230096825A1 (en) * | 2019-10-09 | 2023-03-30 | Dic Corporation | Plate-like alumina particle and method for manufacturing plate-like alumina particle |
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)
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 |
-
1989
- 1989-09-21 FR FR8912402A patent/FR2652075B1/fr not_active Expired - Lifetime
-
1990
- 1990-08-22 NO NO90903690A patent/NO903690L/no unknown
- 1990-09-11 CA CA002025037A patent/CA2025037A1/fr not_active Abandoned
- 1990-09-12 IE IE332090A patent/IE903320A1/en unknown
- 1990-09-17 DD DD90344059A patent/DD295885A5/de not_active IP Right Cessation
- 1990-09-18 KR KR1019900014770A patent/KR950003419B1/ko not_active IP Right Cessation
- 1990-09-18 IL IL95719A patent/IL95719A0/xx unknown
- 1990-09-19 JP JP2249896A patent/JP2564205B2/ja not_active Expired - Fee Related
- 1990-09-20 DE DE69005077T patent/DE69005077T2/de not_active Expired - Fee Related
- 1990-09-20 EP EP90402599A patent/EP0425325B1/de not_active Expired - Lifetime
- 1990-09-20 AU AU62697/90A patent/AU627933B2/en not_active Ceased
- 1990-09-20 ES ES90402599T patent/ES2060108T3/es not_active Expired - Lifetime
- 1990-09-20 AT AT90402599T patent/ATE98304T1/de not_active IP Right Cessation
- 1990-09-20 DK DK90402599.6T patent/DK0425325T3/da active
- 1990-09-21 CN CN90107756A patent/CN1047576C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2025037A1 (fr) | 1991-03-22 |
IE903320A1 (en) | 1991-04-10 |
EP0425325A1 (de) | 1991-05-02 |
NO903690L (no) | 1991-03-22 |
DD295885A5 (de) | 1991-11-14 |
KR910006145A (ko) | 1991-04-27 |
ATE98304T1 (de) | 1993-12-15 |
DE69005077T2 (de) | 1994-05-26 |
CN1047576C (zh) | 1999-12-22 |
JP2564205B2 (ja) | 1996-12-18 |
FR2652075B1 (fr) | 1991-12-06 |
IL95719A0 (en) | 1991-06-30 |
EP0425325B1 (de) | 1993-12-08 |
CN1050366A (zh) | 1991-04-03 |
JPH03131517A (ja) | 1991-06-05 |
AU627933B2 (en) | 1992-09-03 |
NO903690D0 (no) | 1990-08-22 |
DK0425325T3 (da) | 1994-02-14 |
ES2060108T3 (es) | 1994-11-16 |
AU6269790A (en) | 1991-04-11 |
FR2652075A1 (fr) | 1991-03-22 |
KR950003419B1 (ko) | 1995-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |