CN107502951B - 石墨悬浮式冷坩埚制取高纯氧化铝多晶体的工艺方法 - Google Patents
石墨悬浮式冷坩埚制取高纯氧化铝多晶体的工艺方法 Download PDFInfo
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- CN107502951B CN107502951B CN201710970654.0A CN201710970654A CN107502951B CN 107502951 B CN107502951 B CN 107502951B CN 201710970654 A CN201710970654 A CN 201710970654A CN 107502951 B CN107502951 B CN 107502951B
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- 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
- C30B28/00—Production of homogeneous polycrystalline material with defined structure
- C30B28/04—Production of homogeneous polycrystalline material with defined structure from liquids
- C30B28/06—Production of homogeneous polycrystalline material with defined structure from liquids by normal freezing or freezing under temperature gradient
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- 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
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CN201710970654.0A CN107502951B (zh) | 2017-10-18 | 2017-10-18 | 石墨悬浮式冷坩埚制取高纯氧化铝多晶体的工艺方法 |
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CN110592671B (zh) * | 2019-10-15 | 2022-09-27 | 赵伟轩 | 一种镀膜级α-高纯氧化铝多晶颗粒的制备方法 |
CN112126985B (zh) * | 2020-07-10 | 2022-07-08 | 新疆三锐佰德新材料有限公司 | 物理提纯蓝宝石用高纯氧化铝材料的方法及装置 |
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CN102399085A (zh) * | 2011-10-27 | 2012-04-04 | 扬州高能新材料有限公司 | 高纯а-氧化铝的预熔化结晶方法 |
CN103184518A (zh) * | 2011-12-27 | 2013-07-03 | 中国科学院上海硅酸盐研究所 | 一种蓝宝石原料的处理方法 |
CN202928345U (zh) * | 2012-11-26 | 2013-05-08 | 睿为科技(天津)有限公司 | 用于冷坩埚制备高纯金属氧化物的启动熔化装置 |
CN102997661B (zh) * | 2012-11-26 | 2014-09-17 | 睿为科技(天津)有限公司 | 用于冷坩埚制备高纯金属氧化物的启动熔化装置和方法 |
CN103011220A (zh) * | 2012-12-28 | 2013-04-03 | 四川鑫炬矿业资源开发股份有限公司 | 一种5n高纯氧化铝多晶料的生产方法 |
CN104195630A (zh) * | 2014-09-23 | 2014-12-10 | 成都冠禹科技有限公司 | 一种高纯氧化铝多晶的生产方法 |
CN104790034B (zh) * | 2015-02-16 | 2017-10-31 | 刘冠华 | 一种制备氧化铝多晶体的方法 |
CN104790035B (zh) * | 2015-05-05 | 2017-11-14 | 山东天岳先进材料科技有限公司 | 一种红色氧化铝宝石单晶的生长方法 |
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Denomination of invention: Preparation of high purity alumina polycrystal by graphite suspension cold crucible Effective date of registration: 20210511 Granted publication date: 20200131 Pledgee: Tianjin Zhongguancun Science and Technology Financing Guarantee Co.,Ltd. Pledgor: RUIWEI ELECTRONIC MATERIALS (TIANJIN) CO.,LTD. Registration number: Y2021120000017 |
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Date of cancellation: 20230517 Granted publication date: 20200131 Pledgee: Tianjin Zhongguancun Science and Technology Financing Guarantee Co.,Ltd. Pledgor: RUIWEI ELECTRONIC MATERIALS (TIANJIN) CO.,LTD. Registration number: Y2021120000017 |
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Denomination of invention: Process method for producing high-purity alumina polycrystals using graphite suspension cold crucible Effective date of registration: 20230531 Granted publication date: 20200131 Pledgee: Tianjin Zhongguancun Science and Technology Financing Guarantee Co.,Ltd. Pledgor: RUIWEI ELECTRONIC MATERIALS (TIANJIN) CO.,LTD. Registration number: Y2023120000030 |
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