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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

低温碳热还原法合成氮化铝陶瓷超细粉末

秦明礼1; 林健凉1; 肖平安1; 祝宝军1; 曲选辉1,2   

  1. 1.中南大学粉末冶金国家重点实验室, 长沙 410083; 2.　北京科技大学材料科学与工程, 北京 100083
  • 收稿日期:2001-09-10 修回日期:2001-12-03 出版日期:2002-09-20 网络出版日期:2002-09-20

Synthesis of Ultrafine Aluminium Nitride Powder by a Low-temperature Carbothermal Reduction Process

QIN Ming-Li1; QU Xuan-Hui1,2; LIN Jian-Liang1; XIAO Ping-An1; ZHU Bao-Jun1   

  1. 1. The State Key Laboratory for Powder Metallurgy; Central South University; Changsha 410083; China; 2. School of Materials Science and Engineering; University of Science and Technology Beihing, Beijing 100083, China
  • Received:2001-09-10 Revised:2001-12-03 Published:2002-09-20 Online:2002-09-20

PDF (PC)

1343

被引次数

33

摘要： 采用硝酸盐-有机物低温燃烧反应溶胶-凝胶工艺,以硝酸铝（Al（NO3）3·9H2O）、葡萄糖（C6H12O6·H2O）、尿素（CO（NH2）2）为原料,制备出粒度细小、混合均匀的铝源和碳源的混合前驱物,然后以该前驱物为原料进行碳热还原反应制备氮化铝粉末.研究表明,该前驱物具有较高的反应活性,氮化反应速率快,1550℃时仅用90min即可实现完全转化,SEM分析结果表明合成粉末为粒度分布均匀的纳米级（～100nm）粉末.

关键词: 燃烧反应, 前驱物, 碳热还原, 氮化铝

Abstract: A new precursor containing a homogenous mixture of noncrystalline Al2O3 and carbon was prepared with aluminium nitrate, glucose and urea as raw materials, by a low-temperature combustion process. The nitridation of this precursor shows that it has a high reactivity and nitridation reaction proceeds rapidly. AlN powders with ultrafine particle sizes (～100nm) can beobtained at 1550℃ within 90min.

Key words: combustion synthesis, precursor, carbothermal reduction, aluminium nitride

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