摘要
本文用碳还原法合成氮化铝粉末，通过对使用不同起始原料，如活性碳、碳黑、α－Ａｌ２Ｏ３、Ａｌ（ＯＨ）３等合成的氢化铝粉末性质的比较，发现活性碳和Ａｌ（ＯＨ）３有助于加快反应速率，提高产物氮含量．另外发现α－Ａｌ２Ｏ３－活性碳系统中添加少量的氟化物具有催化功效，可在１６５０℃保温５ｈ条件下获得氮含量达３３．５４％的ＡＩＮ粉末．本文还对ＡｌＮ生成机理作了一定探讨．
Aluminium nitride powders were produced by carbothermal reduction with different starting materials, such as active carbon, carbon black, α-A12O3 and Al(OH)3. It was found that using active carbon and Al(OH)3 can accelerate the reaction rate, increase the nitrogen content and decrease the oxygen content of aluminium nitride powders. The addition of fluoride had the role of catalyst. Besides, the growth mechanism of aluminium nitride was discussed in detail.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第3期312-318,共7页
Journal of Inorganic Materials
关键词
氮化铝
粉末
合成
起始原料
陶瓷
aluminium nitride, powder, synthesis, starting material
