Combustion synthesis of ultrafine magnesium nitride powder by Ar dilution
Combustion synthesis of ultrafine magnesium nitride powder by Ar dilution
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DOI：
10.1016/j.scriptamat.2008.09.026
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发表时间：
2009-02
影响因子：
6
通讯作者：
L. Mei;Jiangxu Li
中科院分区：
文献类型：
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作者：
L. Mei;Jiangxu Li
以低熔点碱金属粉末（Mg）和N2/Ar混合气体为反应物，采用气体稀释法实现了超细氮化镁（Mg3 N2）粉末的氮化燃烧合成。在燃烧合成过程中，Ar的加入显著抑制了Mg熔体的团聚，促进了Mg的氮化。合成的Mg3 N2粉体具有良好的立方晶型，平均粒径为2.5μm，是一种很有前途的储氢材料。
Nitriding combustion synthesis of ultrafine magnesium nitride (Mg3N2) powder was achieved by using a newly developed gas dilution technique, with a low-melting-point alkaline metal powder (Mg) and N2/Ar mixed gas as reactants. The addition of Ar to N2remarkably prevented the agglomeration of Mg melts and enhanced the nitridation of Mg during the combustion synthesis process. The as-synthesized Mg3N2powder showed well-crystallized cubic morphology with a mean particle size of 2.5μm, and is a promising candidate for hydrogen storage materials.