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

被引：11
|
作者：
Ghezelbash, M. [1 ]
Darbani, S. M. R. [1 ]
Majd, A. E. [1 ]
Ghasemi, A. [2 ]
机构：
[1] Malek Ashtar Univ Technol, Opt & Laser Sci & Technol Res Ctr, POB 83145-115, Shahin Shahr, Iran
[2] Malek Ashtar Univ Technol, Dept Mat Engn, Shahin Shahr, Iran
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2017年 / 30卷 / 07期
关键词：
Laser-induced breakdown spectroscopy (LIBS); Magnetic properties; Uniaxial anisotropy; INDUCED BREAKDOWN SPECTROSCOPY; OPTICAL-EMISSION; SAMPLE TEMPERATURE; PLASMA;
D O I：
10.1007/s10948-017-3984-x
中图分类号：
O59 [应用物理学];
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 (T (s) ) 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 T (s) for NdFeB sample. The coercivity and saturation of magnetization of samples was monotonically decreased and caused to decrease in LIBS signal intensities.
引用
收藏
页码：1893 / 1898
页数：6
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