Temperature Dependence of Magnetic Hysteresis Loop of NdFeB with Uniaxial Anisotropy by LIBS Technique

被引：0
|
作者：
M. Ghezelbash
S. M. R. Darbani
A. E. Majd
A. Ghasemi
机构：
[1] Malek Ashtar University of Technology,Optic and Laser Science and Technology Research Center
[2] Malek Ashtar University of Technology,Department of Materials Engineering
来源：
Journal of Superconductivity and Novel Magnetism | 2017年 / 30卷
关键词：
Laser-induced breakdown spectroscopy (LIBS); Magnetic properties; Uniaxial anisotropy;
D O I：
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中图分类号：
学科分类号：
摘要：
Laser-induced breakdown spectroscopy (LIBS) has been investigated as a potential analytical tool for better understanding the role of sample temperature and magnetization on the optical emission of laser-induced plasma for NdFeB sample. The mechanism of optical emission by increasing of sample temperature (Ts) and plasma confinement including shock wave in the presence of magnetic field is discussed. The heated samples show a significant decrease in magnetic properties, especially the coercivity and saturation of magnetization. The coercivity and saturation of magnetization of NdFeB were 15000 Oe and 95 emu/g, respectively. The intensity of emission lines decreased with an increase in Ts for NdFeB sample. The coercivity and saturation of magnetization of samples was monotonically decreased and caused to decrease in LIBS signal intensities.
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页码：1893 / 1898
页数：5
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