无机材料学报 ›› 2021, Vol. 36 ›› Issue (11): 1231-1236.DOI: 10.15541/jim20210150 CSTR: 32189.14.10.15541/jim20210150

• 研究快报 • 上一篇    

微波烧结制备ZrO2-AlN复合陶瓷的微观结构与性能研究

牟庭海1,2(), 许文涛2,3, 凌军荣2, 董天文2, 秦梓轩2, 周有福2,3()   

  1. 1.福建师范大学 化学与材料学院, 福州 350007
    2.中国科学院 福建物质结构研究所, 光电材料化学与物理重点实验室, 福州 350002
    3.福建光电信息科技创新实验室, 福州 350108
  • 收稿日期:2021-03-11 修回日期:2021-04-12 出版日期:2021-11-20 网络出版日期:2021-05-10
  • 通讯作者: 周有福, 研究员. E-mail: yfzhou@fjirsm.ac.cn
  • 作者简介:牟庭海(1995-), 男, 硕士研究生. E-mail: mutinghai@fjirsm.ac.cn

Microstructure and Properties of ZrO2-AlN Composite Ceramics by Microwave Sintering

MU Tinghai1,2(), XU Wentao2,3, LING Junrong2, DONG Tianwen2, QIN Zixuan2, ZHOU Youfu2,3()   

  1. 1. College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
    2. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
    3. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
  • Received:2021-03-11 Revised:2021-04-12 Published:2021-11-20 Online:2021-05-10
  • Contact: ZHOU Youfu, professor. E-mail: yfzhou@fjirsm.ac.cn
  • About author:MU Tinghai (1995-), male, Master candidate. E-mail: mutinghai@fjirsm.ac.cn
  • Supported by:
    Strategic Priority Research Program of the Chinese Academy of Sciences(XDB20010300, XDA21010204);Adv. Energy Sci. & Technol. Guangdong Lab(Open laboratory)

摘要:

氧化锆(ZrO2)陶瓷具有出色的机械性能, 但其应用受到低热导率(Thermal Conductivity, TC)的限制。本研究设计并通过微波烧结制备了高热导率氧化锆-氮化铝(AlN)复合陶瓷, 优化制备条件后, 抑制了两种物质之间的反应, 获得了致密的复合陶瓷(相对密度>99%), 详细研究了该复合陶瓷的组织演变、热学性能和力学性能。研究结果表明, 随着AlN含量的增加, 复合陶瓷的室温下热导率、热扩散系数和热容增加, 分别达到41.3 W/(m·K)、15.2 mm2/s和0.6 J/(g·K)。这种具有高热导率和抗热震性的ZrO2-AlN复合复合陶瓷在能源系统的高温热交换材料领域具有广阔的应用前景。

关键词: 氧化锆, 氮化铝, 复合陶瓷, 微波烧结, 热导率

Abstract:

Zirconia (ZrO2) ceramics have excellent mechanical properties, but its application is limited by ZrO2-AlN low thermal conductivity (TC). Zirconia-aluminum nitride (AlN) composite ceramics ZrO2-AlN with high TC were designed and successfully fabricated by microwave sintering. After optimization of preparation conditions, the reaction between two substances was inhibited and the dense composite (relative density>99%) was obtained. The microstructure evolution, thermal behavior and mechanical properties were investigated in detail. The room temperature thermal conductivity, thermal diffusion coefficient and thermal capacity of ZrO2-AlN composites increase with AlN content increasing, reaching 41.3 W/(m·K), 15.2 mm2/s and 0.6 J/(g·K), respectively. Such ZrO2-AlN composites with high thermal conductivity and improved thermal shock resistance have broad application prospects in the field of high temperature heat exchange materials of energy systems.

Key words: zirconia, aluminum nitride, composite ceramic, microwave sintering, thermal conductivity

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