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Accurate quantitative CF-LIBS analysis of both major and minor elements in alloys via iterative correction of plasma temperature and spectral intensity 被引量:4
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作者 Shuxia ZHAO Lei ZHANG +6 位作者 Jiajia HOU Yang ZHAO Wangbao YIN Weiguang MA Lei DONG Liantuan XIAO Suotang JIA 《Plasma Science and Technology》 SCIE EI CAS CSCD 2018年第3期106-111,共6页
The chemical composition of alloys directly determines their mechanical behaviors and application fields.Accurate and rapid analysis of both major and minor elements in alloys plays a key role in metallurgy quality co... The chemical composition of alloys directly determines their mechanical behaviors and application fields.Accurate and rapid analysis of both major and minor elements in alloys plays a key role in metallurgy quality control and material classification processes.A quantitative calibration-free laser-induced breakdown spectroscopy(CF-LIBS)analysis method,which carries out combined correction of plasma temperature and spectral intensity by using a secondorder iterative algorithm and two boundary standard samples,is proposed to realize accurate composition measurements.Experimental results show that,compared to conventional CF-LIBS analysis,the relative errors for major elements Cu and Zn and minor element Pb in the copperlead alloys has been reduced from 12%,26%and 32%to 1.8%,2.7%and 13.4%,respectively.The measurement accuracy for all elements has been improved substantially. 展开更多
关键词 spectral intensity plasma temperature iterative correction calibration-free laserinduced breakdown spectroscopy(CF-LIBS)
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