摘要
探讨了一种新型的燃烧合成ＺｒＮ的工艺，该工艺的特点是用ＺｒＨ２作原料，在低压氮气下进行ＺｒＮ的燃烧合成。并讨论了其脱氢氮化机理，探索了产物相稀释剂对合成过程、产物相及产物形貌的影响。结果表明：在低压氮气下，用ＺｒＨ２燃烧合成ＺｒＮ的工艺是可行的。当产物相稀释剂的添加量为２０％～２５％，粒度与原料粒度接近时，其转化率最高，且颗粒的形貌合成前后没有改变。
A new type of combustion process for the synthesis of ZrN has been developed The ZrN was sythesized under a low pressure of nitrogen, using ZrH2 as starting material instead of pure Zr or ZrO2 The effects of diluent on the combustion process, products, and particle morphology are studied in detail The mechanisms of dehydrogenation and nitridation are also discussed When the amount of diluent is in the range of 20% to 25% and the particle size of the diluent is approximately equal to that of primary ZrH2 powder, the conversion ratio of ZrH2 to ZrN is the highest Using this new type of combustion process to synthesize ZrN, the amount of diluent can be reduced by 25% and the ZrN particles retain the same morphology and lamellar structure as the ZrH2 particles
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
1997年第6期47-51,共5页
Rare Metal Materials and Engineering
