Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1801248 | Journal of Magnetism and Magnetic Materials | 2010 | 6 Pages |
Abstract
Nanostructured Fe49Co49V2 powders were produced by high energy milling at different milling times and then examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The saturation magnetization and coercivity of samples were measured at room temperature by a vibration sample magnetometer (VSM). Structural studies show that as the milling time increases from 0 to 125Â h, the average grain size reduces from 130 to about 8-10Â nm, while the microstrain increases up to 1.7%. The lattice parameter decreases from 0 to 36Â h and then increases up to 125Â h. According to the XRD patterns, the formation of intermetallic compound of (Fe, Co)V after about 16Â h affects the magnetic properties. The coercivity totally increases up to 61Â Oe due to the introduction of microstrain during the milling process. Magnetic measurements reveal that the saturation magnetization has some fluctuations during the milling treatment and finally at 125Â h reaches about 180Â emu/g
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
A. Behvandi, H. Shokrollahi, B. Chitsazan, M. Ghaffari,