摘要
采用放电等离子烧结的方法制备出Fe67Co9.5Nd3Dy0.5B20大块非晶合金,且具有很好的非晶性能。用DTA热分析得到合金的第一次晶化结束温度为650℃。在650℃下保温10min退火热处理后,合金出现了较好硬磁性,合金的最大磁能积达61kJ/m3,粉末颗粒的大小对合金的磁性能影响不大。Nd1.1Fe4B4相的析出也对矫顽力有一定影响。
Fe67Co9.5Nd3 Dy0.5 B20 bulk glassy alloy has been consolidated by spark-plasma sintering（SPS）, which has good glassy property. The end temperature of the first crystallization is 650℃ examined by DTA. The bulk glassy alloy has rather good hard magnetic properties followed by annealing at 650℃ for 10min, for which the maximum energy product is 61kJ/m^3. The magnetic properties of the alloy do not change significantly with the dimension of the powder. The appearance of Nd1.1 Fe4B4 phase affects the coercivity of the alloy.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第2期238-242,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50475157)
国家自然科学重点基金资助项目(50234020)
