Determination of Carbon Content in Steel Using Laser-Induced Breakdown Spectroscopy
Determination of Carbon Content in Steel Using Laser-Induced Breakdown Spectroscopy
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DOI：
10.1366/0003702924123692
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发表时间：
1992-09
影响因子：
3.5
通讯作者：
J. A. Aguilera;C. Aragón;J. Campos
中科院分区：
文献类型：
--
作者：
J. A. Aguilera;C. Aragón;J. Campos
激光诱导击穿光谱已被用于测定钢中的碳含量。等离子体是由一束激光聚焦在样品表面上形成的。利用时间分辨光谱和在氮气气氛中产生等离子体，获得了1.6%的精密度和65ppm的检出限。这些值与其他精确的常规技术的值相似。所研究的钢的基体效应被减小到不锈钢和非不锈钢的校准曲线之间的微小斜率差。
Laser-induced breakdown spectroscopy has been used to determine carbon content in steel. The plasma was formed by focusing a Nd:YAG laser on the sample surface. With the use of time-resolved spectroscopy and generation of the plasma in nitrogen atmosphere, a precision of 1.6% and a detection limit of 65 ppm have been obtained. These values are similar to those of other accurate conventional techniques. Matrix effects for the studied steels are reduced to a small slope difference between the calibration curves for stainless and nonstainless steels.