氮化锰生产及结构分析  

Nitration Process and Structural Analysis on MnN

作　　者：蒋汉祥[1] 王少娜[1] 黄瑛[1] 邓琴[1] 陈精强[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2004年第5期70-73,共4页Journal of Chongqing University

摘　　要：介绍了利用金属锰粉采用固态氮化法生产氮化锰合金的原理和工艺,采用正交设计法,在实验室管式炉内、高温条件下利用纯氮(≥99.99%)对金属锰粉进行氮化。通过一系列实验得出了适宜的技术工艺参数,锰粉粒度为0.6mm,氮化时间为4h,氮化温度为700℃时,获得了含氮高达6.94%的氮化锰合金。通过物相分析和扫描电镜形貌分析,得出含氮高的氮化锰主要成分是Mn3N2,其次是Mn4N;含氮低的氮化锰主要成分是Mn2N,其次是Mn4N。此外还观测了氮化锰合金的形貌。The production theory and the production process of MnN by solid-nitration process with manganese power is introduced. In order to obtain MnN, manganese power has been nitrided by pure nitrogen at high temperature in pipe-type-oven at lab. Suitable nitration technical parameters, such as manganese power size, nitriding temperature and nitriding time have been gotten by a series of experiments. MnN production that nitrogen content is 6.94% has been obtained. In addition, three alloys composed manganese nitrogen (Mn_(3)N_(2), Mn_(2)N,Mn_(4)N) have been obtained and their distributions are observed by the way of XRD and SEM.

关 键 词：金属锰粉 纯氮 固态氮化 物相分析 

分 类 号：TF792[冶金工程—钢铁冶金]