Elemental analysis of cemented carbides by calibration-free portable laser-induced breakdown spectroscopy |
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| Authors: | Shuai Wang Di Tian Mingjun Xu Qingyu Lin Jie Wang Guangmeng Guo |
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| Affiliation: | 1. College of Instrumentation and Electrical Engineering, Jilin University, Changchun, China;2. College of Chemistry, Sichuan University, Chengdu, China;3. Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Research Center of Analytical Instrumentation, Sichuan University, Chengdu, China;4. School of Aeronautics and Astronautics, Sichuan University, Chengdu, China |
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| Abstract: | The process of cemented carbides manufacturing requires rapid and field elemental analytical techniques to control and evaluate the properties of products. Calibration-free laser-induced breakdown spectroscopy (CF-LIBS) is such a potential elemental analytical technique. In this work, a portable LIBS instrument combined with a CF method was developed for the analysis of cemented carbides. Three batches of cemented compact carbides without reference samples were analyzed. Qualitative and quantitative analysis of the samples were achieved by using the portable LIBS instrument combined with CF method. To validate the analysis results, X-ray fluorescence spectrometry (XRF) was used to analyze the samples as well. The results of CF-LIBS agreed well with the results of XRF, with relative errors between ?29.53 and 24.70%. The results demonstrated that the portable LIBS instrument combined with CF method was capable for direct and rapid analysis without any need of standard measurements. Notably, with the portable LIBS instrument combined with CF method, acceptable accuracy could be obtained, which is promising for practical field applications. |
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| Keywords: | Calibration-free method cemented carbides portable laser-induced breakdown spectroscopy instrument X-ray fluorescence |
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