| 氮化铝粉体制备工艺研究 |
| Preparation Technology of Aluminium Nitride |
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| 摘要: 以氢氧化铝为铝源，乙炔黑为碳源，采用碳热还原和铝粉直接氮化同时进行，并辅以微波加热的新工艺制备了氮化铝粉体。结果表明，采用该工艺在反应温度为1 300 ℃、反应时间为1 h的条件下能获得氮化率高且分散性能良好的氮化铝粉末，该工艺反应活化能仅为常规碳热还原法所需活化能的1/4。 |
| 关键词: 氮化铝 制备工艺 活化能 |
| 基金项目: |
| Abstract: Aluminium nitride(AlN) powder was prepared by carbon thermal reduction method and aluminum powder direct-reduction method as well as microwave heating using aluminum hydroxide and acetylene black as aluminum source and carbon source. The results show that the pure AlN powder with good dispersivity can be obtained only by heating at 1 300 ℃ for 1 hour when the new technique is used. Moreover, activation energy calculation result shows that the activation energy can reduce 3/4 in the process of the new technique comparing with the general carbon thermal reduction reaction. |
| Keywords: aluminium nitride powder preparation technology activation energy |
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| 肖 劲,邓松云,吴胜辉,陈燕彬,李 劼.氮化铝粉体制备工艺研究[J].无机化学学报,2010,26(3):464-468. |
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