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合金Pr0.1Ce0.6Tb0.3Fe1.9-xBx的结构和磁致伸缩

Structure and magnetostriction of Pr0.1Ce0.6Tb0.3Fe1.9-xBx alloys

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【作者】 任芝李松涛刘何燕卢遵铭曹春梅李养贤

【Author】 REN Zhi1,LI Song-tao1,LIU He-yan2,LU Zun-ming2,CAO Chun-mei1,LI Yang-xian2 1.School of Mathematics & Physics,North China Electric Power University,Baoding 071003,China; 2.School of Materials & Engineering,Hebei University of Technology,Tianjin 300130,China;

【机构】 华北电力大学数理学院河北工业大学材料科学与工程学院

【摘要】 用电弧炉熔炼法制备了Pr0.1Ce0.6Tb0.3Fe1.9-xBx(x=0.00~0.20)合金。分别采用X射线衍射(XRD)、振动样品磁强计(VSM)和应变仪分析了合金的结构、居里温度和磁致伸缩。研究发现,所有样品均呈现单一MgCu2型Laves相结构;随B含量的增加,晶格常数在x≤0.1时缓慢下降而在x>0.1时快速下降;居里温度在x=0.1处出现峰值;B的引入导致了合金室温磁致伸缩性能的下降。

【Abstract】 Pr0.1Ce0.6Tb0.3Fe1.9-xBx alloys(x=0~0.20) were fabricated by arc-melting method.The structure,Curie temperature and magnetostriction of the alloys were investigated by means of X-ray diffraction,vibrating sample magnetometer and standard strain technique.All the samples present MgCu2-type Laves phase structure.The lattice parameter decreases slightly with x when x≤0.1,and decreases rapidly when x>0.1 with increasing B content.Curie temperature exhibits a maximum value at x=0.1.The magnetostriction at room temperature decreases due to the addition of boron.

【基金】 华北电力大学科研基金资助项目(200912005);中央高校基本科研业务专项资金资助项目(09ML56)
  • 【文献出处】 磁性材料及器件 ,Journal of Magnetic Materials and Devices , 编辑部邮箱 ,2011年01期
  • 【分类号】TM274
  • 【下载频次】138
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