High thermal stability of soft magnetic (Fe,Co)-Mo-B-C-P-Si metallic glasses

被引：26

作者：

Bhattacharya, S. ^{[1
]}

Lass, E. A. ^{[2
]}

Poon, S. J. ^{[1
]}

Shiflet, G. J. ^{[2
]}

机构：

[1] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

[2] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 488卷 / 01期

关键词：

Metallic glasses; Soft magnetic; Thermal stability; FE-BASED ALLOYS;

D O I：

10.1016/j.jallcom.2009.08.114

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：

The effects of metalloids on the thermal stability and magnetic properties of (Fe,Co)-Mo-B-C-P-Si metallic glasses are presented. The alloys exhibit high thermal stability. despite only a 40 K width of the supercooled liquid (SCL) region and a reduced glass transition temperature of 0.55. The amorphous phases and their high saturation magnetization (similar to 1.44T) and low coercive field (similar to 20A/m) are retained upon long-term annealing in the SCL region. Temperature-time transformation (TTT) studies and investigation of crystallization properties using transmission electron microscopy confirm the beneficial effect of cobalt on the thermal stability, rendering the present alloys promising for scientific study and soft magnet applications. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：79 / 83

页数：5

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