The structure, magnetostriction, and anisotropy compensation of (Tb1−xPrx)(Fe0.4Co0.6)1.9 alloys
The structure, magnetostriction, and anisotropy compensation of (Tb1−xPrx)(Fe0.4Co0.6)1.9 alloys
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DOI：
10.1063/1.120193
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发表时间：
1997-11
影响因子：
4
通讯作者：
Zhi-jun Guo;B. Wang;Zhidong Zhang;X. Zhao;X. Jin;W. Liu;Q. Xiao
中科院分区：
文献类型：
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作者：
Zhi-jun Guo;B. Wang;Zhidong Zhang;X. Zhao;X. Jin;W. Liu;Q. Xiao
研究了（Tb1−xPrx）（Fe0.4Co0.6）1.9（0≤x≤1）合金的结构、磁致伸缩和各向异性补偿。结果表明，（Tb1−xPrx）（Fe0.4Co0.6）1.9合金的基体为mgcu2型立方Laves结构的（Tb,Pr）（Fe,Co）2相，当x≤0.2和x=0.5和1.0时，第二相为少量的（Tb,Pr）（Fe,Co）3相。在0.2<x≤0.4范围内，具有puni3型结构的（Tb,Pr）（Fe,Co）3相的数量随x的增加而增加，当x=0.4时成为主要相。当0.5<x≤0.6时，（Tb,Pr）（Fe,Co）3相急剧增加，而当0.6<x≤0.8时，随x的增加而减少。合金的自发磁致伸缩λ111在x=0.8附近出现峰值（λ111=2370×10−6）。还研究了室温下的磁致伸缩|λ∥−λ⊥|。
The structure, magnetostriction, and anisotropy compensation of (Tb1−xPrx)(Fe0.4Co0.6)1.9 (0⩽x⩽1) alloys were investigated. It was found that the matrix of (Tb1−xPrx)(Fe0.4Co0.6)1.9 alloys is a (Tb,Pr)(Fe,Co)2 phase with a MgCu2-type cubic Laves structure, and a second phase of small amount is a (Tb,Pr)(Fe,Co)3 phase when x⩽0.2 and x=0.5 and 1.0. In the range 0.2<x⩽0.4, the amount of the (Tb,Pr)(Fe,Co)3 phase with a PuNi3-type structure increases with increasing x and becomes the main phase when x=0.4. When 0.5<x⩽0.6, the (Tb,Pr)(Fe,Co)3 phase increases sharply, whereas the 0.6<x⩽0.8, it decreases with increasing x. The spontaneous magnetostriction λ111 of the alloys exhibits a peak near x=0.8 (λ111=2370×10−6). The magnetostriction |λ∥−λ⊥| at room temperature was also examined.