Simultaneous analysis of Si, Mn and Ti segregation in pig iron by laser-induced breakdown spectroscopy

2018 ◽  
Vol 47 (8) ◽  
pp. 806003
Author(s):  
梅亚光 Mei Yaguang ◽  
程宇心 Cheng Yuxin ◽  
程树森 Cheng Shusen ◽  
郝中骐 Hao Zhongqi ◽  
郭连波 Guo Lianbo ◽  
...  
2017 ◽  
Vol 56 (29) ◽  
pp. 8148 ◽  
Author(s):  
Mingyin Yao ◽  
Gangfu Rao ◽  
Lin Huang ◽  
Muhua Liu ◽  
Hui Yang ◽  
...  

2015 ◽  
Vol 30 (2) ◽  
pp. 403-409 ◽  
Author(s):  
Qingdong Zeng ◽  
Lianbo Guo ◽  
Xiangyou Li ◽  
Chao He ◽  
Meng Shen ◽  
...  

A portable FO-LIBS system can achieve comparable results with the conventional LIBS system.


Author(s):  
Nan Li ◽  
Kota Tanabe ◽  
Naoya Nishi ◽  
Ronger Zheng ◽  
Tetsuo Sakka

The detection capability of long-pulse laser-induced breakdown spectroscopy (LIBS) for simultaneous analysis of submerged solids and bulk water has been investigated with a Cu target immersed in a CaCl2 solution....


2020 ◽  
Vol 10 (23) ◽  
pp. 8461
Author(s):  
Giorgio S. Senesi ◽  
Olga De Pascale ◽  
Aldo Bove ◽  
Bruno S. Marangoni

One of the main objectives in the steel production process is to obtain a blast furnace pig iron of good quality and at the lowest possible cost. In general, the quality of pig iron is evaluated on the basis of its chemical composition determined by X-ray fluorescence laboratory equipment. In the present study, the performance of a handheld (h) laser-induced breakdown spectroscopy (LIBS) instrument in the identification and the quantification of the relevant elements C, Mn, P, Si, and Ti in forty-six blast furnace pig iron samples was tested successfully. The application of two different models, i.e., univariate and multivariate partial least square (PLS) calibration and validation, to the whole LIBS data set showed that the latter approach was much more efficient than the former one in quantifying all elements considered, especially Si and Ti.


2020 ◽  
Vol 35 (7) ◽  
pp. 1501-1501
Author(s):  
Qingdong Zeng ◽  
Lianbo Guo ◽  
Xiangyou Li ◽  
Chao He ◽  
Meng Shen ◽  
...  

Correction for ‘Laser-induced breakdown spectroscopy using laser pulses delivered by optical fibers for analyzing Mn and Ti elements in pig iron’ by Qingdong Zeng et al., J. Anal. At. Spectrom., 2015, 30, 403–409, DOI: 10.1039/C4JA00462K.


2020 ◽  
Vol 28 (10) ◽  
pp. 14198 ◽  
Author(s):  
Qingyu Lin ◽  
Pengkun Yin ◽  
Yixiang Duan ◽  
Ying Wang ◽  
Lin Zhang ◽  
...  

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.


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