Simultaneous variations of microstructure and magnetic properties of Ni58Fe12Zr20B10 nanostructure/amorphous alloy prepared by mechanical alloying

被引：7
作者：
Besmel, R. [1 ]
Shokrollahi, H. [2 ]
机构：
[1] Islamic Azad Univ, Ahvaz Branch, Mat Sci & Engn Dept, Ahvaz 6134937333, Iran
[2] Shiraz Univ Technol, Electroceram Grp, Mat Sci & Engn Dept, Shiraz 71555313, Iran
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2012年 / 324卷 / 18期
关键词：
Mechanical alloying; Nanomaterials; Microstructure; Magnetic property; X-ray analysis; GLASS-FORMING ABILITY; AMORPHIZATION; STABILITY; EVOLUTION;
D O I：
10.1016/j.jmmm.2012.04.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study aims to evaluate magnetic and micro-structural properties of amorphous/nanocrystalline mechanically alloyed Ni58Fe12Zr20B10 powders with ball-milling time up to 190 h. Structural, microstructural and thermal evaluations of the milled powders were carried out by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and differential scanning calorimetry (DSC) methods. Magnetic properties were also measured by a vibrating sample magnetometer (VSM) instrument. Results showed that the amorphous phase reached maximum value of 95% and the crystallite size was about 3 nm at the end of the milling. Magnetization saturation (M-s) decreased slightly and coercivity (H-c) reached to the highest value at 72 h of the milling time. At the 190 h of milling, the coercivity and saturation magnetization reached 18 Oe and 20 emu/g, respectively. While, after an appropriate amount of heat treatment, these two variables became approximately 2 Oe and 32 emu/g. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：2829 / 2835
页数：7
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