The role of magnetostriction in pulsed laser irradiation of amorphous alloys

被引:17
作者
Sorescu, M [1 ]
机构
[1] Duquesne Univ, Dept Phys, Pittsburgh, PA 15282 USA
关键词
amorphous alloys; magnetostriction; laser processing; magnetic properties; Mossbauer spectroscopy;
D O I
10.1016/S0925-8388(98)00528-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Samples of Fe66Co18B15Si1, Fe40Ni38Mo4B18 and Fe72.6Cr4.8Al4.8Si0.3Y0.3 metallic glasses were irradiated with a pulsed alexandrite laser (lambda=750 nm, tau=60 mu s) using different laser fluences. Irradiation-induced structural and property modifications were characterized using Mossbauer spectroscopy. Complementary information was obtained from hysteresis loop measurements and scanning electron microscopy (SEM). The experimental data obtained demonstrate the key role played by the magnetostriction constant in explaining the mechanism of irradiation-induced phase transformations in amorphous magnets. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:251 / 254
页数:4
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