The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility
Aerosol particle contamination in high-power laser facilities has become a major cause of internal optical component damage resistance and service life reduction. In general, contaminating particles primarily originate from stray light; therefore, it is crucial to investigate the mechanism and dynam...
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MDPI AG
2023-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/23/7415 |
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| author | Xinxiang Miao Guorui Zhou Qihua Zhu Xiaodong Jiang Yong Jiang Caizhen Yao Yilan Jiang Longfei Niu Siheng Xiang Jiaxuan Chen |
| author_facet | Xinxiang Miao Guorui Zhou Qihua Zhu Xiaodong Jiang Yong Jiang Caizhen Yao Yilan Jiang Longfei Niu Siheng Xiang Jiaxuan Chen |
| author_sort | Xinxiang Miao |
| collection | DOAJ |
| description | Aerosol particle contamination in high-power laser facilities has become a major cause of internal optical component damage resistance and service life reduction. In general, contaminating particles primarily originate from stray light; therefore, it is crucial to investigate the mechanism and dynamics of the dynamic contaminating particle generation to control the cleanliness level. In this study, corresponding research was conducted on experiments and theory. We investigated the particle generation and surface composition modification under the action of a laser. We employed various surface analytical methods to identify the possible variations in the aluminum alloy surface during laser irradiations. A theoretical model for particle ejection from aluminum alloy surfaces was established by taking the adhesion force and laser cleaning force (due to thermal expansion) into account. The results show that the threshold energies for contamination particle generation and damage are around 0.1 and 0.2 J/cm<sup>2</sup>, respectively. Subsurface impurities are the primary source of particles, and particle adhesion density is related to surface roughness. Pollution particle generation and splashing processes include temperature increases, phase changes, impact diffusion, and adhesion. The results provide a reference for the normal operation of high-energy laser systems. The results also suggest that the laser irradiation pretreatment of aluminum alloy surfaces is essential to improve the cleanliness level. |
| first_indexed | 2024-03-09T01:46:57Z |
| format | Article |
| id | doaj.art-6ddc3691af244fa48025f6ba5cdfffe8 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T01:46:57Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6ddc3691af244fa48025f6ba5cdfffe82023-12-08T15:21:07ZengMDPI AGMaterials1996-19442023-11-011623741510.3390/ma16237415The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser FacilityXinxiang Miao0Guorui Zhou1Qihua Zhu2Xiaodong Jiang3Yong Jiang4Caizhen Yao5Yilan Jiang6Longfei Niu7Siheng Xiang8Jiaxuan Chen9Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaSchool of Mathematics and Physics, Southwest University of Science and Technology, Mianyang 621010, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaCenter for Precision Engineering, Harbin Institute of Technology, Harbin 150001, ChinaAerosol particle contamination in high-power laser facilities has become a major cause of internal optical component damage resistance and service life reduction. In general, contaminating particles primarily originate from stray light; therefore, it is crucial to investigate the mechanism and dynamics of the dynamic contaminating particle generation to control the cleanliness level. In this study, corresponding research was conducted on experiments and theory. We investigated the particle generation and surface composition modification under the action of a laser. We employed various surface analytical methods to identify the possible variations in the aluminum alloy surface during laser irradiations. A theoretical model for particle ejection from aluminum alloy surfaces was established by taking the adhesion force and laser cleaning force (due to thermal expansion) into account. The results show that the threshold energies for contamination particle generation and damage are around 0.1 and 0.2 J/cm<sup>2</sup>, respectively. Subsurface impurities are the primary source of particles, and particle adhesion density is related to surface roughness. Pollution particle generation and splashing processes include temperature increases, phase changes, impact diffusion, and adhesion. The results provide a reference for the normal operation of high-energy laser systems. The results also suggest that the laser irradiation pretreatment of aluminum alloy surfaces is essential to improve the cleanliness level.https://www.mdpi.com/1996-1944/16/23/7415contamination particleshigh energy laser systemthermodynamic ablationlaser-induced damageclean control |
| spellingShingle | Xinxiang Miao Guorui Zhou Qihua Zhu Xiaodong Jiang Yong Jiang Caizhen Yao Yilan Jiang Longfei Niu Siheng Xiang Jiaxuan Chen The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility Materials contamination particles high energy laser system thermodynamic ablation laser-induced damage clean control |
| title | The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility |
| title_full | The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility |
| title_fullStr | The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility |
| title_full_unstemmed | The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility |
| title_short | The Characterization of Laser-Induced Particles Generated from Aluminum Alloy in High Power Laser Facility |
| title_sort | characterization of laser induced particles generated from aluminum alloy in high power laser facility |
| topic | contamination particles high energy laser system thermodynamic ablation laser-induced damage clean control |
| url | https://www.mdpi.com/1996-1944/16/23/7415 |
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