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人工晶体学报 ›› 2021, Vol. 50 ›› Issue (1): 199-208.

• 综合评述 • 上一篇    

α-Al2O3相变机理及制备工艺研究进展

吴宇峰1, 张铁军2, 张家萌1, 毕作振3, 雷鸣1, 毕科1   

  1. 1.北京邮电大学理学院,北京 100876;
    2.陆军装备部驻上海地区航空军事代表室,上海 200233;
    3.山东中新铝基新材料有限公司,淄博 255000
  • 收稿日期:2020-11-04 出版日期:2021-01-15 发布日期:2021-03-01
  • 通讯作者: 毕 科,博士,教授。E-mail: bike@bupt.edu.cn
  • 作者简介:吴宇峰(1996—),男,四川省人,博士研究生。E-mail:wyf13547139875@163.com
  • 基金资助:
    国家自然科学基金(61774020);北京市优秀人才培养资助“青年拔尖”项目

Research Progress on Phase Transition Mechanism and Preparation Technology of α-Al2O3

WU Yufeng1, ZHANG Tiejun2, ZHANG Jiameng1, BI Zuozhen3, LEI Ming1, BI Ke1   

  1. 1. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    2. Aviation Military Representative Room of the Army Armament Department in Shanghai, Shanghai 200233, China;
    3. Shandong Zhongxin Aluminium-based New Materials Company Limited, Zibo 255000, China
  • Received:2020-11-04 Online:2021-01-15 Published:2021-03-01

摘要: α-Al2O3在耐火材料、电子材料等多个领域有着极其重要的应用。本文首先介绍了α-Al2O3在工业应用方面的评价指标和α-Al2O3的相变机理,接着分别从固相合成、液相合成、气相合成三个方面阐述了α-Al2O3制备的相关研究进展,对制备过程中影响α-Al2O3晶粒微观状态的若干因素,包括煅烧温度、矿化剂类型、pH值及预处理条件等进行讨论。最后指出了当前对α-A12O3成核生长机理研究缺乏的问题,表明明确的成核机理、高纯度α-A12O3的量产和形貌控制技术将会是该领域未来的研究重点和发展方向。

关键词: α-Al2O3, 相变机理, 微观形貌, 晶粒尺寸, 煅烧温度, 矿化剂

Abstract: α-Al2O3 has important applications in refractories, electronic materials and many other fields. This article first introduces the evaluation index of α-Al2O3 in industrial application and α-Al2O3 phase transition mechanism. Then the article expounds related research progress of the α-Al2O3 preparation, from three aspects that solid phase synthesis, liquid phase synthesis and gas phase synthesis, respectively. The factors which affect the microstructure of α-Al2O3 particles during preparation are discussed, including calcination temperature, mineralizer, pH value and pretreatment conditions. Finally, the lack of research on the nucleation growth mechanism of α-Al2O3 is pointed out, and indicating that a specific nucleation mechanism, the mass production of high purity α-Al2O3 and morphology control technology will be the future research focus and development direction in this field.

Key words: α-Al2O3, transition mechanism, micromorphology, particle size, calcination temperature, mineralizer

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