摘要
转炉烟尘通过湿法(硫酸和氨水)冶金提纯净化、高能球磨处理后,在NH3/H2气氛下进行还原氮化,以穆斯堡尔谱学、X光衍射等方法对处理试样进行物相分析。结果表明,Ar气氛下球磨2h后,经550℃/2h还原、550℃/3h氮化(NH3/H2=3/4,降温时NH3/H2=1/6)处理,γ-′Fe4N的生成量≥91%。
After purifying and milling the revolving furnace sludge were nitrided at NH3/H2 atmosphere. The phase structure for nitrogen specimens were checked by Mossbauer spectroscopy and X-ray diffraction,etc. The results show that at following conditions ; milling for 2h in Ar gas,reducing at temperature of 550℃ for 2h,nitriding at 550℃ for 3h in NH3/H2 atmosphere, the γ'-Fe4N magnetic powder can be synthesize, the content 91%.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2006年第12期1879-1880,1883,共3页
Journal of Functional Materials
关键词
转炉烟尘
提纯净化
还原氮化
γ'-Fe—N磁粉
穆斯堡尔谱
revolving furnace sludge
purifying
reduction and nitrogen
γ'-Fe, N magnetic powder
Mossbauer spectra