Determination of Cobalt Concentration in Hard Alloy Using Laser-Induced Plasma Spectroscopy
LI Jing1, ZHANG Jian-qiu1, LI Sheng-li2
1. Photo-Electric Lab, Department of Precision Machinery and Precision Instrument, University of Science and Technology of China, Hefei 230027, China 2. Department of Biomedicine Engineering, Ji’nan University, Guangzhou 510632, China
Abstract：The cobalt spectrum measurement was conducted with the experiment setup including a Nd∶YAG Q-switched solid laser as the exciting light, and YG hard alloy as the sample. Experiments show that the 345.35 nm sensitive spectral line intensity of Co in YG3 demonstrates a parabola trend with the increase in power density, and as the power density exceeds 1.2×108 W·cm-2, the spectrum intensity becomes stronger, and its deflection becomes less. The experiments on measuring Co concentration in YG hard alloy series show that the concentration of cobalt has a good linear relationship with its spectral intensity, the maximum relative error of measurement is 5.08%, and the result is reliable with higher precision.
Key words：Laser-induced plasma spectroscopy;YG hard alloy;Cobalt
李静1,张鉴秋1, 李胜利2 . 激光等离子体光谱法用于测量硬质合金中钴含量[J]. 光谱学与光谱分析, 2006, 26(12): 2323-2325.
LI Jing1, ZHANG Jian-qiu1, LI Sheng-li2 . Determination of Cobalt Concentration in Hard Alloy Using Laser-Induced Plasma Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(12): 2323-2325.
[1] Bolger J A. Applied Spectroscopy, 2000, 54(2): 181. [2] Ciucci A, et al. Applied Spectroscopy, 1999, 53(8): 960. [3] Sturm V, Peter L, et al. Applied Spectroscopy, 2000, 54(9): 1275. [4] Dimitra N Stratis, et al. Applied Spectroscopy, 2000, 54(12): 1719. [5] ZHANG Yan-hui, SONG Yi-zhong(张延惠, 宋一中). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2000, 20(1): 25. [6] SONG Yi-zhong, LI Zun-ying, ZHU Rui-fu, et al(宋一中, 李尊营, 朱瑞富, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2001, 21(3): 290. [7] SONG Yi-zhong, LI Zun-ying, ZHU Rui-fu, et al(宋一中, 李尊营, 朱瑞富, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2002, 22(2): 192. [8] LI Jing, LIN Chang-he, LI Sheng-li(李 静，林长贺，李胜利). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(12): 1905. [9] Andrew V Pakhomov, et al. First International Symposium on Beamed Energy Propulsion, 2003. 194.
