摘要
在Ar气氛下,用真空电弧熔炼方法制备了La10Fe81-xZr9Bx（x=0,1,2）系列母合金,用单铜辊急冷电磁感应甩带技术制备了La10Fe81-xZr9Bx（x=0,1,2）合金薄带.室温X射线衍射结果表明,该系列合金为非晶态合金.磁性测量结果表明,该系列合金具有铁磁性.通过测定等温磁化曲线,确定了该系列合金的磁熵变,其最大值（磁场变化为0~1.5 T）可以达到金属Gd的1/4.
A series of La10Fe81-xZr9Bx（x=0,1,2） alloys were prepared by arc melting method under Ar atmosphere.Then,the alloys were rapidly cooled by melt-spinning method using the electromagnetic induction furnace.X-ray diffraction results show that the alloys are in amorphous state.The magnetic measurements show that these alloys are ferromagnetic,and the Curie temperature changes with boron concentration.The maximum value of magnetic entropy change（under an applied magnetic field change from 0 to 1.5 T） is about 1/4 of metal Gd in same condition.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
2011年第3期264-266,共3页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
国家自然科学基金资助项目(50961010)
内蒙古自然科学基金资助项目(20080404ZD01)
关键词
非晶合金
居里温度
磁热效应
磁熵变
amorphous alloys
Curie temperature
magnetocaloric effect
magnetic entropy change
