Structure and Magnetostrictive Properties of Tb0.2Pr0.8(Fe0.4Co0.6)1.9Bx Alloys

Jin Jun Liu; Hong Yun Yin; Xin Cai Liu; Ping Zhan Si

doi:10.4028/www.scientific.net/AMR.295-297.144

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 295-297Structure and Magnetostrictive Properties of...

Structure and Magnetostrictive Properties of Tb_0.2Pr_0.8(Fe_0.4Co_0.6)_1.9B_x Alloys

Abstract:

Crystal structure and magnetostrictive properties of Tb_0.2Pr_0.8(Fe_0.4Co_0.6)_1.9B_x alloys have been investigated by means of x-ray diffraction and a standard strain technique. The matrix of Tb_0.2Pr_0.8(Fe_0.4Co_0.6)_1.9 alloy consists of (Tb,Pr)(Fe,Co)₂ phase with a cubic MgCu₂-type structure and some amount of (Tb,Pr)(Fe,Co)₃ phase with a PuNi₃-type structure. The introduction of boron effectively restrains the emergence of the iron-rich phase, which can occupy either the substitutional or interstitial site in this alloy system. The single Laves phase can be obtained for the high Pr-content Tb_0.2Pr_0.8(Fe_0.4Co_0.6)_1.9B_x alloys with 0.05< x ≤0.15, which have improved magnetostrictive properties as compared to the boron free material.

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Advanced Materials Research (Volumes 295-297)

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144-147

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https://doi.org/10.4028/www.scientific.net/AMR.295-297.144

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July 2011

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Jin Jun Liu, Hong Yun Yin, Xin Cai Liu, Ping Zhan Si

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Alloy, Boron, Magnetostriction, MgCu₂-Type Structure

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