| NH4Cl对机械活化Al粉燃烧合成AlN的控制 |
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| 引用本文： | 刘建平,张晖.NH4Cl对机械活化Al粉燃烧合成AlN的控制[J].电子元件与材料,2011,30(1):8-12. |
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| 作者姓名： | 刘建平 张晖 |
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| 作者单位： | 西安交通大学,非平衡态及量子调控教育部重点实验室,陕西,西安,710048 |
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| 摘 要： | 添加NH4Cl到经由高能球磨制得的机械活化铝粉中后,铝粉在空气中于室温下即可发生自燃反应.本研究通过含有不同量NH4Cl的机械活化铝粉的自燃制得了Al2O3-AlN疏松粉末,并研究了NH4CL添加量对燃烧产物成分和结构的控制.结果表明:NH4Cl不仅控制了产物的形貌,而且改变了铝粉的氮化初理.在NH4Cl添加量为3%～...
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| 关 键 词： | 氮化铝 氯化铵 机械活化 燃烧合成 |
Effects of NH4Cl on the synthesis of aluminum nitride by the spontaneous combustion of mechanically activated aluminium powder |
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| LIU Jianping,ZHANG Hui.Effects of NH4Cl on the synthesis of aluminum nitride by the spontaneous combustion of mechanically activated aluminium powder[J].Electronic Components & Materials,2011,30(1):8-12. |
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| Authors: | LIU Jianping ZHANG Hui |
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| Affiliation: | (Non-equilibrium Condensed Matter and Quantum Engineering Laboratory,the Key Laboratory of Ministry of Education,Jiaotong University,Xi’an 710048,China) |
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| Abstract: | With the addition of NH4Cl,the mechanically activated aluminum powder made by high energy ball milling could burn spontaneously in air at room temperature with the formation of Al2O3-AlN powder.In this study,AlN powders were prepared by the spontaneous combustion of aluminum powder including different amounts of NH4Cl.The effects of NH4Cl content on the composition and structure of the combustion product were studied by characterizing the phase and morphology of combustion products.The results show that NH4Cl not only affects the morphology of products,but also changes the nitridation mechanism of aluminum powder.When 3%～5%(mass fraction) NH4Cl is added,the sizes of particles included in the combustion product show small variation and the content of AlN in the combustion product is above 70%(mass fraction). |
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| Keywords: | aluminum nitride ammonium chloride mechanical activation combustion synthesis |
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