当前位置: X-MOL 学术Spectrochim. Acta B. At. Spectrosc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Species distribution in laser-induced plasma on the surface of binary miscible alloy
Spectrochimica Acta Part B: Atomic Spectroscopy ( IF 3.3 ) Pub Date : 2020-09-24 , DOI: 10.1016/j.sab.2020.105987
Yang Zhao , Lei Zhang , Shuqing Wang , Jianghua Han , Guofu Xia , Weiguang Ma , Lei Dong , Wangbao Yin , Liantuan Xiao , Suotang Jia , Jin Yu

The spatiotemporal species distribution and dynamics of plasma play a crucially important role in improving the quality of the deposited film fabricated by pulsed laser deposition (PLD) and optimizing the spectral acquisition to enhance the quantitative performance of spatial-resolved laser-induced breakdown spectroscopy (LIBS). In this work, the monochrome imaging is used to analyze the plasmas induced from binary miscible alloys and explore the dependence of species distribution in plasma on laser-supported combustion (LSC) and laser-supported detonation (LSD) wave propagation regimes. This paper includes three conclusions: 1) the species distribution in LSC-wave dominated plasma induced from immiscible alloy is heavily influenced by the melting points of constituted elements, while in LSC-wave dominated plasma induced from miscible alloy, it is related to the boiling points; 2) whether the alloy is miscible or immiscible, the species distribution in LSD-wave dominated plasma is only related to the atomic masses; 3) to a great extent, the reduction rate of species in LSC-wave dominated plasma is associated with the transition probability, while that in LSD-wave dominated plasma is associated with the number density of species in the upper energy level.



中文翻译:

二元可混溶合金表面激光诱导等离子体中的物种分布

等离子体的时空分布和动力学在提高脉冲激光沉积(PLD)制备的沉积膜的质量以及优化光谱采集以增强空间分辨激光诱导击穿光谱(LIBS)的定量性能方面起着至关重要的作用)。在这项工作中,单色成像用于分析由二元可混溶合金诱发的等离子体,并探索等离子体中物种分布对激光支撑燃烧(LSC)和激光支撑爆震(LSD)波传播方式的依赖性。本文包括三个结论:1)互溶合金诱导的LSC波控制等离子体中的物种分布受构成元素熔点的严重影响,而互溶合金诱导的LSC波控制等离子体中的物种分布,与沸点有关;2)合金是可混溶的还是不可混溶的,LSD波主导的等离子体中的物种分布仅与原子质量有关;3)在很大程度上,LSC波占主导地位的等离子体中物种的减少率与跃迁几率相关,而LSD波占主导地位的等离子体中物种的减少率与高能级中物种的数量密度有关。

更新日期:2020-10-07
down
wechat
bug