Structural and magnetic properties of nanostructured Fe50(Co50)-6.5 wt% Si powder prepared by high energy ball milling

被引：36

作者：

Khajepour, M. ^{[1
]}

Sharafi, S. ^{[1
]}

机构：

[1] Shahid Bahonar Univ Kerman, Dept Mat Sci & Engn, Kerman, Iran

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 29期

关键词：

Mechanical alloying; Nanostructured materials; Saturation magnetization; Coercivity; NANOCRYSTALLINE FE-SI; SOFT; ALLOYS; NI; MICROSTRUCTURE;

D O I：

10.1016/j.jallcom.2011.04.095

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：

This work investigates the effects of 6.5 wt% Si addition and milling times on the structural and magnetic properties of Fe50Co50 powders. For this purpose, at first the elemental Fe and Co powders were milled for 10 h to produce Fe50Co50 alloy and then Si was added and the new product was milled again for different times. The microstructural and magnetic properties were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM). The results show that the minimum crystallite size of the as-milled powders (similar to 12 nm) has been achieved after introducing Si and milled for 8 h (total milling time of 18 h). Also an amount of 188 emu/g has been achieved for M-s. This amount of M-s is higher than most of those which have been already reported for Ms of different Fe-Si systems. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：7729 / 7737

页数：9

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