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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，优于同成份的定向结晶材料。采用高性能Tb0.3Dy0.7Fe1.95单晶材料，通过优化微位移致动器的机械、磁路参数，研制出具有非水冷结构的新型微位移致动器。
Tb0.3Dy0.7Fe1.95单晶的应用研究
【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，优于同成份的定向结晶材料。采用高性能Tb0.3Dy0.7Fe1.95
【机 构】
：
武汉理工大学,清华大学
【出 处】
：
武汉理工大学学报
【发表日期】
：
2002年2期
【基金项目】
：
“九·五”国家 86 3项目资助 (86 3- 715 - 0 0 3- 0 4 2 )
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