MAGNETOSTRICTIVE PROPERTIES OF FINELY CRYSTALLIZED (TB, DY)-FE-B ALLOYS

被引：1

作者：

TANAKA, T ^{[1
]}

ARIMURA, H ^{[1
]}

KIKUCHI, S ^{[1
]}

SUGIMOTO, S ^{[1
]}

OKADA, M ^{[1
]}

HOMMA, M ^{[1
]}

ARAI, K ^{[1
]}

机构：

[1] TOHOKU UNIV, ELECT COMMUN RES INST, SENDAI, MIYAGI 980, JAPAN

来源：

JOURNAL OF THE JAPAN INSTITUTE OF METALS | 1995年 / 59卷 / 04期

关键词：

(TERBIUM; DYSPROSIUM)-IRON-BORON ALLOYS; GIANT MAGNETOSTRICTION; AMORPHOUS PHASE; FINE CRYSTALLIZATION;

D O I：

10.2320/jinstmet1952.59.4_447

中图分类号：

学科分类号：

摘要：

The magnetostrictive properties of (Tb, Dy)-Fe-B alloys with fine (Tb, Dy)Fe-2 grains crystallized from an amorphous state were studied. Amorphous phases were obtained for rapidly quenched ((Tb1-xDyx)(0.33)Fe-0.67)(100-y)B-y alloys with B content over 5 mol%. Increasing of Dy content makes the alloys easy to be crystallized during rapidly quenching process, and then it is necessary to increase the B content for achieving an amorphous state. Annealing of amorphous alloys gives a finely crystallized grains of RFe(2) compound with the size of around 10 nm, which yields the high magnetostrictive susceptibility and low coercive force. Maximum magnetostrictive susceptibility, (d lambda/dH)(H=0.1) = 55.8 x 10(-10)(m/A), of ((Tb1-xDyx)(0.33)Fe-0.67)(100-y)B-y alloys was obtained in x = 0.3 and y = 6. This alloy exhibited the giant magnetostriction, lambda(H=1.28) = 722 x 10(-6) at the applied magnetic field of 1.28 MA/m.

引用

页码：447 / 455

页数：9

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