摘要
用提拉法磁悬浮冷坩埚技术生长的RFe2 (Tb0 .3Dy0 .7Fe1.95)单晶材料 ,其室温下的饱和磁致伸缩系数λs 可达 2× 10 - 3以上 ,优于同成分的定向结晶材料。采用自制的高性能RFe2 单晶材料 ,通过优化微位移致动器的机械、磁路参数 。
Magnetostrictive coefficient of Tb 0.3 Dy 0.7 Fe 1.95 (RFe 2) single crystal is much higher than that of directional solidification crystal with the same composition. Prototype actuator has been designed with such a high performance RFe 2 single crystal. The structure and performance of the actuator are also discussed in this paper.
出处
《机械工程材料》
CAS
CSCD
北大核心
2003年第1期35-37,共3页
Materials For Mechanical Engineering
基金
"九五国家 863高技术"资助项目 (863 715 0 0 3 0 42 7)
关键词
磁致伸缩
Td-Dy-Fe
微位移致动器
magnetostriction
single crystal Tb Dy Fe
micro displacement actuator
