摘要
采用快淬和晶化退火法制备了成分为Nd8.5Fe74.5Co5Cu1Nb1Zr3Cr0.5B6.5的纳米晶复合永磁合金。研究了制备过程中快淬速度和退火温度对合金磁性能和组织结构的影响。结果表明,快淬速度为16.7m/s,合金样品经690℃/4min的晶化处理后,制成的粘结磁体可得到较优异的综合磁性能:Br=0.65T,JHc=708.4kA/m,(BH)max=72.0kJ/m3。
Nd_(8.5)Fe_(74.5)Co_5Cu_1Nb_1Zr_3Cr_(0.5)B_(6.5) alloy was prepared by melt-spun and subsequent annealing,influence of annealing temperature and melt-spun speed on microstructure and magnetic proerties of bonded magnets has been investigated.The optimum magnetic properties can be obtained after annealing the ribbons(16.7m/s) at 690℃ for 4min,the remanence (B_r),intrinsic(_JH_c) and maximum energy product((BH)_(max))are 0.65T,708.4kA/m,72.0kJ/m^3,respectively.
出处
《稀土》
EI
CAS
CSCD
北大核心
2004年第6期15-17,共3页
Chinese Rare Earths
基金
国家"863"项目资助(2002AA302602-2)
关键词
纳米晶复合
快淬速度
退火温度
磁性能
nanocomposite
melt-spun speed
annealing temperature
magnetic properties
