标题： 用于增材技术中粉末材料多元素分析的激光诱导击穿光谱法 显示英文标题

标题： Laser induced breakdown spectroscopy for multielement analysis of powder materials utilized in additive technologies

摘要： 利用激光诱导击穿光谱技术对增材技术中使用的粉末材料进行了首次定量分析。 激光诱导击穿光谱法对附着在双面胶带上的松散金属粉末进行成像，即使对于颗粒密度差异较大的粉末混合物（如镍合金粉末中的碳化钨颗粒），也提供了高重复性的测量结果。 通过构建校准曲线并采用留一法交叉验证程序估计准确性，评估了激光诱导击穿光谱法在钨和碳分析方面的分析能力。 激光诱导击穿光谱法与X射线荧光光谱法的比较结果显示，激光诱导击穿光谱法的分析结果更好。 分析精度的提高和对轻元素（如碳等）的定量能力显示出激光诱导击穿光谱法作为增材技术中粉末材料快速现场多元素分析技术的巨大前景。 显示英文摘要

摘要： Powder materials utilized in additive technologies were quantitatively analyzed by laser induced breakdown spectroscopy for the first time. Laser induced breakdown spectroscopy mapping of loose metal powder attached to the double-sided adhesive tape provided high reproducibility of measurements even for powder mixtures with large difference of particles densities (tungsten carbide particles in nickel alloy powder). Laser induced breakdown spectroscopy analytical capabilities for tungsten and carbon analysis were estimated by calibration curve construction and accuracy estimation by leave-one-out cross-validation procedure. Laser induced breakdown spectroscopy and X-ray fluorescence spectroscopy techniques comparison revealed better results for laser induced breakdown spectroscopy analysis. Improved accuracy of analysis and capability to quantify light elements (carbon etc.) demonstrated large perspectives of laser induced breakdown spectroscopy as a technique for express on-site multelement analysis of powder materials utilized in additive technologies.