Magnetic and structural characterizations of Fe80Cr10Si10 alloy obtained by mechanical alloying

被引：4

作者：

Bensebaa, Z. ^{[1
]}

Bouzabata, B. ^{[1
]}

Otmani, A. ^{[2
]}

Djekoun, A. ^{[1
]}

Kihal, A. ^{[1
]}

Greneche, J. M. ^{[3
]}

机构：

[1] Univ Annaba, Fac Sci, Dept Phys, Lab Magnetisme & Spect Solides LM2S, BP 12, Annaba 23000, Algeria

[2] Univ Skikda, Fac Sci, Lab Rech Phys Chim Surfaces Interfaces, Skikda, Algeria

[3] Univ Maine, F-72085 Le Mans, France

来源：

PROCEEDINGS OF THE JMSM 2008 CONFERENCE | 2009年 / 2卷 / 03期

关键词：

Nanocrystalline materials; mechanical alloying; FeCrSi alloy; X-rays diffraction; Mossbauer spectrometry; PHASE; POWDERS; SYSTEM;

D O I：

10.1016/j.phpro.2009.11.006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Fe80Cr10Si10 alloy was synthesized from the milling of a mixture of pure elements of Fe, Cr, and Si powders for various times up to 15h. Characterizations of the milled powders were carried by X-ray diffraction, a vibratory sample magnetometer at 300 K and Mossbauer spectrometry. It is observed the formation of the alpha-bcc-Fe (Cr, Si) phase after 3 hours of milling. The grain size decreases with the increase of the milling time and attains 10 nm at 15 hours. At the temperature of 300 K, the saturation magnetization (Ms) decreases with the milling time. Its value at 10h of milling time is 167.4 emu/g. Also, the coercitive force decreases with the milling time. These variations are related to the microstructural changes and the increase of defects induced by milling processes. The Mossbauer spectroscopy shows two phases. The first one is ferromagnetic and is attributed to alpha-Fe (Si, Cr) phase. The second phase rich in Cr and Si is paramagnetic. (C) 2009 Elsevier B.V. All rights reserved

引用

页码：649 / 654

页数：6

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