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Synthesis of Ultrafine Aluminium Nitride Powder by a Low-temperature Carbothermal Reduction Process
Author(s): QIN Mingli, QU Xuanhui, LIN Jianliang, XIAO Pingan, ZHU Baojun
Pages: 1054-
1058
Year: 2002
Issue:
5
Journal: JOURNAL OF INORGANIC MATERIALS
Keyword: 燃烧反应; 前驱物; 碳热还原; 氮化铝;
Abstract: 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.
Citations
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