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Structure and magnetostriction of Tb_(0.4)Nd_(0.6)(Fe_(0.8)Co_(0.2))_(1.90) alloy prepared by solid-state synthesis 被引量:2

Structure and magnetostriction of Tb_(0.4)Nd_(0.6)(Fe_(0.8)Co_(0.2))_(1.90) alloy prepared by solid-state synthesis
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摘要 Mechanical alloying (MA) and subsequent solid sintering process was used to prepare the Nd-containing magnetostrictive Tb0.4Nd0.6(Fe0.8Co0.2)1.90 alloy. The structure, thermal stability and phase transformation were investigated as functions of composition, milling process and annealing temperature. An amorphous phase was formed by high-energy ball milling for 5 h with the ball-to-powder weight ratio of 20:1, which crystallized into MgCu2-type and PuNi3-type crystalline structure with different annealing temperatures. The magnetoelastic properties were investigated by means of a standard strain technique. The high Nd-content (Tb,Nd)(Fe,Co)2 Laves phase for the composition Tb0.4Nd0.6(Fe0.8Co0.2)1.90 was synthesized by MA process plus annealing at 500 ℃ for 30 min.
出处 《Rare Metals》 SCIE EI CAS CSCD 2012年第6期547-551,共5页 稀有金属(英文版)
基金 financially supported by the National Natural Science Foundation of China(Nos.50801039and11074227) Natural Science Foundation of Zhejiang Province(No.Y4090022),Ningbo City(No.2012A610054) K.C.Wong Magna Fund in Ningbo University
关键词 mechanical alloying MAGNETOSTRICTION STRUCTURE light rare earth mechanical alloying magnetostriction structure light rare earth
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