期刊
MATERIALS & DESIGN
卷 41, 期 -, 页码 8-15出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2012.04.047
关键词
Nano materials; Mechanical alloying; Magnetic
In the present work, structural and magnetic properties of nanocrystalline (Fe70Co30)(100-x)Cu-x (x = 0, 5, 9) powders produced by mechanical alloying (MA) have been Investigated. These properties were investigated by X-ray diffraction(XRD), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM). According to the results, a body-centered cubic nanostructured (Fe70Co30)(91)Cu-9 alloy with an average crystallite size of about 13 nm has been produced by milling for 32 h. Whereas, in (Fe70Co30)(95)Cu-5 and (Fe70Co30) the alloying process has accomplished after 45 h milling. It is found that Cu speeds up the formation of a bcc phase with finer microstructure (D = 12 nm for x = 9). With increasing the milling time, the crystallite size has decreased for all powders. Increase in microstrain was observed with increasing the milling time and also with increasing Cu content. The magnetic measurements show a contrasting saturation magnetization and coercivity (H-c) in Fe-Co-Cu alloys. These variations are explained on the basis of crystallite size and strain variations in the samples during milling. (C) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据