Observation of different regimes of the grain size effect on plasma emission induced by laser ablating granular materials
文献类型：期刊论文
| 作者 | Li, Yaju2,3; Li, Xiaolong2,3; Li, Songting1; Zhou, Maoji2,3; Qian, Dongbin2,3 ; Chen, Liangwen2,3; Yang, Jie2,3; Zhang, Shaofeng2,3; Ma, Xinwen2,3
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| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 2021-07-15 |
| 页码 | 8 |
| ISSN号 | 0267-9477 |
| DOI | 10.1039/d1ja00115a |
| 通讯作者 | Qian, Dongbin(qiandb@impcas.ac.cn) ; Chen, Liangwen(chenlw@impcas.ac.cn) |
| 英文摘要 | The grain size effect on the plasma emission, induced by a 1064 nm laser pulse of 7 ns duration ablating the surface of a randomly packed granular (RPG) copper material in air at atmospheric pressure, was experimentally investigated in the laser fluence range of 12.4 to 35.4 J cm(-2). Four sieved granular copper samples with discrete grain sizes of 297 +/- 20, 218 +/- 15, 132 +/- 10, and 109 +/- 5 mu m were used in this study. The measured trends of the spectral line intensity emitted by copper versus the laser fluence for the four samples suggest the identification of three laser fluence ranges, where the size effect plays a different role. Combining the plasma parameters calculated through spectroscopic analysis, we interpreted the phenomenon of plasma emission by introducing one new kind of size effect stemming from the mechanical performance of RPG materials to support the shock pressure imparted by the energetic processes of plasma generation and expansion. Such an interpretation was also supported by additional photographic measurements of the particle ejecta and granular crater after laser ablation. The study has practical significance in developing the technology for direct analysis of RPG materials using laser-induced breakdown spectroscopy. |
| WOS关键词 | INDUCED BREAKDOWN SPECTROSCOPY ; CU |
| 资助项目 | National Key RD Program[2017YFA0402300] ; NSFC program[11974359] ; NSFC program[U1632143] |
| WOS研究方向 | Chemistry ; Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000681616600001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Key RD Program ; NSFC program |
| 源URL | [http://119.78.100.186/handle/113462/136681]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Qian, Dongbin; Chen, Liangwen |
| 作者单位 | 1.Northwest Univ, Inst Photon & Photon Technol, Xian 710069, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yaju,Li, Xiaolong,Li, Songting,et al. Observation of different regimes of the grain size effect on plasma emission induced by laser ablating granular materials[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2021:8. |
| APA | Li, Yaju.,Li, Xiaolong.,Li, Songting.,Zhou, Maoji.,Qian, Dongbin.,...&Ma, Xinwen.(2021).Observation of different regimes of the grain size effect on plasma emission induced by laser ablating granular materials.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,8. |
| MLA | Li, Yaju,et al."Observation of different regimes of the grain size effect on plasma emission induced by laser ablating granular materials".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2021):8. |
入库方式： OAI收割
来源：近代物理研究所
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