使用LIBS与化学测量方法相结合的铜和铁基合金的组成分析
Vikas Gupta1, Abhishekh Kumar Rai2, Tejmani Kumar1
1Laser Spectroscopy Research Laboratory, Department of Physics, University of Allahabad, Prayagraj, 211002, India.
概括
激光诱导分解光谱 (LIBS) 为合金提供了高效的组成分析. 将无校准LIBS与部分最小平方回归 (PLSR) 结合起来,可以在没有样本准备的情况下进行快速,具有成本效益的质量评估.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 频谱学是一种光谱学.
背景情况:
- 准确的合金组成对于确定工业应用中的材料性能至关重要.
- 激光诱导分解光谱 (LIBS) 是一种用于元素分析的多功能技术.
- 工业质量控制需要在线,现场和快速分析方法.
研究的目的:
- 评估无校准LIBS (CF-LIBS) 和校准曲线方法的有效性,用于合金组合分析.
- 优化LIBS参数,以便进行准确的定量测量.
- 为了证明CF-LIBS和部分最小平方回归 (PLSR) 的联合实用性,用于工业质量评估.
主要方法:
- 使用无校准LIBS (CF-LIBS) 和部分最小平方回归 (PLSR) 来分析铜和铁合金的组成.
- 优化了CF-LIBS的时间延迟,以满足光学薄和局部热平衡 (LTE) 等离子体条件.
- 在PLSR方法中选择最强的排放线区域进行定量分析.
主要成果:
- 证明了使用CF-LIBS和PLSR用于合金定量元素分析的可行性.
- 优化了等离子体条件和光谱区域,以提高分析精度.
- 展示了时间解析的LIBS光谱分析和血参数变化的潜力.
结论:
- CF-LIBS与PLSR相结合,提供了一种快速且具有成本效益的合金质量监测方法.
- 该技术消除了对样品的预处理的需要,简化了工业分析.
- LIBS是一个强大的工具,用于在线,现场的不同阶段材料的组成分析.
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