无机材料学报

• 研究论文 • 上一篇    下一篇

原位反应自生成氮化铝的研究

金海波1; 陈克新1; 周和平1; 邹宗树2; 王文忠2   

  1. 1. 清华大学新型陶瓷与精细工艺国家重点实验室, 北京 100084; 2. 东北大学材料与冶金学院, 沈阳 110006
  • 收稿日期:2000-03-27 修回日期:2000-04-24 出版日期:2001-03-20 网络出版日期:2001-03-20

Synthesis of Aluminium Nitride by Direct Nitridation of Molten Al-Mg-Si Alloys

JIN Hai-Bo1; CHEN Ke-Xin1; ZHOU He-Ping1; ZOU Zong-Shu2; WANG Wen-Zhong2   

  1. 1. Department of Material Science and Engineering of Tsinghua University; Beijing 100084 China; 2. School of Materials and Metallurgy; Northeastern University; Shenyang 10006 China
  • Received:2000-03-27 Revised:2000-04-24 Published:2001-03-20 Online:2001-03-20

摘要: 为研究原位自生氮化铝的可行性,以及掺杂元素、温度等实验条件对氮化过程的影响,在1000℃高纯氮气氛下,分别对不同成分的合金进行直接氮化实验.通过化学成分分析、X-ray衍射分析等实验手段,从热力学角度分析了原位反应自生成AIN的可能性.包括掺杂元素Mg、Si的热力学行为,以及铝合金熔体的氮化反应过程分析.在恒温热重实验基础上,探讨了掺杂元素、氮化温度等条件对氮化反应速率影响.

关键词: 铝合金, AlN, 氮化, 热、动力学

Abstract: The feasibility of fabricating AlN was demonstrated. The effects of additives and nitridation temperature on the behavior in direct nitridation of molten
Al-Si-Mg alloys were investigated. The experiments were carried out at different temperatures under high pure nitrogen atmosphere. The main role of additive elements,
and the nitridation process of molten aluminium alloys were also discussed on the base of thermodynamic analysis. Moreover, the effects of temperature and additives
in raw alloys on the nitridation rate were investigated by TG experiments.

Key words: aluminum alloys, AlN, in situ reaction, thermodynamics and kinetics

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