アクセス数 : ?
ダウンロード数 : ?
ID 114389
著者
Liu, Renwei Xi’an Jiaotong University|Tokushima University
Rong, Kai Xi’an Jiaotong University
Wang, Zhenzhen Tokushima University|Xi’an Jiaotong University
Cui, Minchao Tokushima University|Northwestern Polytechnical University
出口, 祥啓 Tokushima University|Xi’an Jiaotong University 徳島大学 教育研究者総覧 KAKEN研究者をさがす
Tanaka, Seiya Tokushima University
Yan, Junjie Tokushima University|Xi’an Jiaotong University
Liu, Jiping Xi’an Jiaotong University
キーワード
steel elemental analysis
sample temperature effect
SP-LIBS
collinear long-short DP-LIBS
資料タイプ
学術雑誌論文
抄録
Laser induced breakdown spectroscopy (LIBS) has been investigated as a potential multi-element quantitative analysis tool for the quality control of on-line steel production. This research investigated influence of sample temperature on steel sample measurement using collinear long-short dual-pulse LIBS (long-short DP-LIBS) and single-pulse LIBS (SP-LIBS). The standard steel sample has been uniformly heated in a muffle furnace from 20°C to 700°C. The experimental results show that sample temperature has significantly effect on measurement result using SP-LIBS. However, long-short DP-LIBS can effectively reduce the sample temperature effect on measurement result. The detection characteristics of long-short DP-LIBS and SP-LIBS were compared using the intensity ratio of I Mn 404.136 nm/I Fe 400.524 nm and I Fe 402.187 nm/I Fe 400.524 nm under different delay time and different sample temperature conditions. The signal intensity and plasma temperature can be maintained higher and more stable for a period of time and at different sample temperature by long-short DP-LIBS with smaller error bar compared with that of SP-LIBS, which indicated long-short DP-LIBS has better measurement repeatability than SP-LIBS. The plasma temperature correction method was applied to compare the detection features of long-short DP-LIBS and SP-LIBS. The signal stability of long-short DP-LIBS measurement was improved significantly at different sample temperature with plasma temperature correction. These results demonstrated that the effect of sample temperature can be reduced using long-short DP-LIBS method to improve the on-line detection capability for steel measurement in
complex environment.
掲載誌名
ISIJ International
ISSN
09151559
13475460
cat書誌ID
AA10680712
出版者
The Iron and Steel Institute of Japan
60
8
開始ページ
1724
終了ページ
1731
発行日
2020-02-28
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
理工学系