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Microanalysis of molybdenum-copper stainless steel samples by picosecond laser-induced breakdown spectroscopy
Wang W(汪为)1,2,3,4,5; Sun LX(孙兰香)1,2,3,5; Zhang P(张鹏)1,2,3,5; Qi LF(齐立峰)1,2,3,5; Zheng LM(郑黎明)1,2,3,5; Dong W(董伟)1,2,3,5
Department工业控制网络与系统研究室
Source PublicationMICROCHEMICAL JOURNAL
ISSN0026-265X
2020
Volume158Pages:1-8
Indexed BySCI
WOS IDWOS:000573289800003
Contribution Rank1
Funding OrganizationNational Key Research and Development Program of China [2017YFF0106202] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDJ-SSW-JSC037] ; LiaoNing Revitalization Talents Program [XLYC1807110] ; Youth Innovation Promotion Association, Chinese Academy of Sciences
KeywordMicroanalysis Laser-induced breakdown spectroscopy LIBS Picosecond laser Ablation Crater
Abstract

In the micro-laser-induced breakdown spectroscopy field, when the laser ablated crater on the surface of the sample is less than 10 mu m, it is difficult to detect the plasma emission line because of short lifetime of excited plasma, and simultaneous quantitative analysis of multiple elements is rarely reported. In this paper, a picosecond LIBS micro-area analysis scheme is proposed. Compared with the femtosecond laser micro-area analysis system, this scheme is more mature and reliable, and is more beneficial to engineering applications. In addition, in this study, the effect of the number of laser pulses on the crater morphology was studied. It was observed that a certain crater depth would have an enhancement effect on the signal, and by controlling the laser energy, a crater less than the diffraction limit was obtained. Moreover, a multielement simultaneous analysis on a set of molybdenum-copper stainless steel samples containing 40%-70% iron was performed when the ablated crater had an outer diameter of approximately 5 mu m and an inner diameter of approximately 3 mu m. By accumulating spectral intensity, background removal, and abnormal point processing, the calibration results for the eight elements of Mn, Cr, Ni, Cu, Ti, V, Nb and Al were not less than 0.95 using the basic calibration method. Among them, the calibration results for Ni, Cu, V, Nb, Al elements are all higher than 0.99 and the detection limits of the obtained elements range from 0.04% to 1.8%.

Language英语
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Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/27720
Collection工业控制网络与系统研究室
Corresponding AuthorSun LX(孙兰香)
Affiliation1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.Key Laboratory of Networked Control System, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
3.Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
5.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
Recommended Citation
GB/T 7714
Wang W,Sun LX,Zhang P,et al. Microanalysis of molybdenum-copper stainless steel samples by picosecond laser-induced breakdown spectroscopy[J]. MICROCHEMICAL JOURNAL,2020,158:1-8.
APA Wang W,Sun LX,Zhang P,Qi LF,Zheng LM,&Dong W.(2020).Microanalysis of molybdenum-copper stainless steel samples by picosecond laser-induced breakdown spectroscopy.MICROCHEMICAL JOURNAL,158,1-8.
MLA Wang W,et al."Microanalysis of molybdenum-copper stainless steel samples by picosecond laser-induced breakdown spectroscopy".MICROCHEMICAL JOURNAL 158(2020):1-8.
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