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In situ analysis of magnesium alloy using a standoff and double-pulse laser-induced breakdown spectroscopy system
Xin Y(辛勇); Sun LX(孙兰香); Yang ZJ(杨志家); Zeng P(曾鹏); Cong ZB(丛智博); Qi LF(齐立峰)
作者部门工业控制网络与系统研究室
关键词Laser-induced Breakdown Spectroscopy Standoff Double-pulse Online Magnesium Alloy
发表期刊Frontiers of Physics
ISSN2095-0462
2016
卷号11期号:5页码:1-10
收录类别SCI ; CSCD
WOS记录号WOS:000390888100003
CSCD记录号CSCD:5881354
产权排序1
资助机构National Natural Science Foundation China (Grant No. 61473279) and the National Key Research and Development Program of China (No. 2016YFF0102502).
摘要To monitor the components of molten magnesium alloy during the smelting process in real time and online, we designed a standoff double-pulse laser-induced breakdown spectroscopy (LIBS) analysis system that can perform focusing, collecting and imaging of long-range samples. First, we tested the system on solid standard magnesium alloy samples in the laboratory to establish a basis for the online monitoring of the components of molten magnesium alloy in the future. The experimental results show that the diameters of the focus spots are approximately 1 mm at a range of 3 m, the ablation depth of the double-pulse mode is much deeper than that of the single-pulse mode, the optimum interpulse delay of the double pulse is inconsistent at different ranges, and the spectral intensity decays rapidly as the range increases. In addition, the enhancement effect of the double pulse at 1.89 m is greater than that at 2.97 m, the maximum enhancement is 7.1-fold for the Y(I)550.35-nm line at 1.89 m, and the calibration results at 1.89 m are better than those at 2.97 m. At 1.89 m, the determination coefficients (R2) of the calibration curves are approximately 99% for Y, Pr, and Zr; the relative standard deviations (RSDs) are less than 10% for Y, Pr, and Zr; the root mean square errors (RMSEs) are less than 0.037% for Pr and Zr; the limits of detection (LODs) are less than 1000 ppm for Y, Pr, and Zr; and the LODs of Y, Pr, and Zr at 2.97 m are higher than those at 1.89 m. Additionally, we tested the system on molten magnesium alloy in a magnesium alloy plant. The calibration results of the liquid magnesium alloy are not as favorable as those of the sampling solid magnesium alloys. In particular, the RSDs of the liquid magnesium alloy are approximately 20% for Pr and La. However, with future improvements in the experimental conditions, the developed system is promising for the in situ analysis of molten magnesium alloy.
语种英语
WOS标题词Science & Technology ; Physical Sciences
WOS类目Physics, Multidisciplinary
关键词[WOS]LIQUID STEEL ; QUANTITATIVE-ANALYSIS ; SPATIAL CONFINEMENT ; ELEMENTAL ANALYSIS ; OPTICAL-EMISSION ; INDUCED PLASMA ; LIBS ; CHINA ; SPECTROMETER ; ABLATION
WOS研究方向Physics
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/19718
专题工业控制网络与系统研究室
通讯作者Sun LX(孙兰香)
作者单位1.Key Laboratory of Networked Control Systems, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式
GB/T 7714
Xin Y,Sun LX,Yang ZJ,et al. In situ analysis of magnesium alloy using a standoff and double-pulse laser-induced breakdown spectroscopy system[J]. Frontiers of Physics,2016,11(5):1-10.
APA Xin Y,Sun LX,Yang ZJ,Zeng P,Cong ZB,&Qi LF.(2016).In situ analysis of magnesium alloy using a standoff and double-pulse laser-induced breakdown spectroscopy system.Frontiers of Physics,11(5),1-10.
MLA Xin Y,et al."In situ analysis of magnesium alloy using a standoff and double-pulse laser-induced breakdown spectroscopy system".Frontiers of Physics 11.5(2016):1-10.
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