在MgLi合金中进行现场分析,使用带有紧室的激光诱导分解光谱
Ivan Tanra1, Marincan Pardede2, Indra Karnadi1
1Department of Electrical Engineering, Krida Wacana Christian University, Jakarta, 11470, Indonesia.
概括
这项研究使用激光诱导分解光谱 (LIBS) 在- (MgLi) 合金中展示了现场 (Li) 分析. 在一个紧的室内降低压力有效地减少了光谱自逆转,使得精确的量化.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 频谱学是一种光谱学.
背景情况:
- - (MgLi) 合金在航空航天和国防方面至关重要.
- 由于光谱干扰,对MgLi合金中的 (Li) 含量进行准确的现场分析具有挑战性.
- 激光诱导分解光谱 (LIBS) 是一个有前途的元素分析技术.
研究的目的:
- 通过LIBS.研究使用MgLi合金中的in-situ分析的可行性.
- 为了评估压力对Li排放线的光谱自逆转的影响.
- 开发一种用于精确量化MgLi合金中的Li的方法.
主要方法:
- 使用激光诱导分解光谱 (LIBS) 进行元素分析.
- 专注于两个 (Li) 排放线:Li I 670.8 nm和Li I 610.4 nm.
- 采用一个紧的,可调节的压力室来控制分析环境.
主要成果:
- 在大气压下观察到两条排放线的显著自我反转特征.
- 证明降低压力大大降低了自逆转,特别是在Li I 610.4 nm线上.
- 在使用标准的MgLi合金样本 (LA91,LA141) 和具有成本效益的CCD探测器,实现了Li I 610.4 nm线的比例Li排放强度.
结论:
- 610.4nm的Li I排放线更适合在降压下对MgLi合金中的高Li度分析.
- 在LIBS分析中,开发的具有可调压的紧室有效地减轻了自我逆转.
- 这种方法为MgLi合金中的in-situ分析提供了可行的解决方案.
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