文献类型：期刊文献

英文题名：Analysis of Cu and Zn contents in aluminum alloys by femtosecond laser-ablation spark-induced breakdown spectroscopy

作者：Pinjun, Li[2];Zhengye, Xiong[1];Zidong, Ma[1];Jingyuan, Guo[1];Chunxi, Wang[1]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Zhanjiang Presch Educ Coll, Dept Informat Sci, Zhanjiang 524084, Peoples R China

年份：2023

卷号：21

期号：1

外文期刊名：OPEN PHYSICS

收录：SCI-EXPANDED(收录号：WOS:001075127100001)、、Scopus(收录号：2-s2.0-85173710489)、WOS

基金：The authors would like to acknowledge helpful discussions with Dr. He Xiaoyong of Dongguan University of Technology, et al.

语种：英文

外文关键词：laser-induced breakdown spectroscopy; laser-ablation spark-induced breakdown spectroscopy; aluminum alloy; detection technology

外文摘要：To enhance the sensitivity of detecting Cu and Zn in aluminum alloys, we incorporated a spark discharge unit into the femtosecond laser-induced breakdown spectroscopy (fs-LIBS) system, forming a femtosecond laser ablation spark-induced breakdown spectroscopy (fs-LA-SIBS) system. We utilized both fs-LA-SIBS and fs-LIBS techniques to detect Cu and Zn in various aluminum alloy samples with different contents. Our results reveal that the spark discharge extends the duration of laser-induced plasma atomic radiation and amplifies the peak intensity of atomic radiation, thereby significantly increasing the time-integrated signal intensity of laser-induced plasma. Under the present experimental conditions, the limits of detection (LoDs) of Cu and Zn in aluminum alloy by fs-LA-SIBS are 16 and 12 ppm, respectively. In contrast, the LoDs of Cu and Zn by fs-LIBS technique under the same laser pulse energy are 96 and 84 ppm, respectively. Hence, for Cu, the LoDs by the fs-LA-SIBS technique are 1/6 of those by the fs-LIBS technique, and for Zn, the LoDs by the fs-LA-SIBS technique are 1/7 of those by the fs-LIBS technique. Our findings demonstrate that the fs-LA-SIBS technique is more sensitive than the fs-LIBS technique in the quantitative analysis of elements and may be a practical approach for elemental analysis in alloys.