IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-19 DOI: 10.1016/j.vacuum.2025.114519

Lianfeng Wei , Xianhao Chen , Di Xie , Meng Jiang , Yong Zheng , Baobin Ma , Jianguo Yang , Xi Chen , Yinlong Wang , Lin Zhu , Fangyuan Liu , Xuehan Li , Ran Zhang , Peng He , Yanbin Chen

{"title":"Study on the forming characteristics and molten pool behaviour of low vacuum swing laser welding of zirconium alloy","authors":"Lianfeng Wei , Xianhao Chen , Di Xie , Meng Jiang , Yong Zheng , Baobin Ma , Jianguo Yang , Xi Chen , Yinlong Wang , Lin Zhu , Fangyuan Liu , Xuehan Li , Ran Zhang , Peng He , Yanbin Chen","doi":"10.1016/j.vacuum.2025.114519","DOIUrl":"10.1016/j.vacuum.2025.114519","url":null,"abstract":"<div><div>A study was conducted on the vacuum oscillating laser welding process and its mechanisms for zirconium alloy, in response to the need for developing new welding techniques for zirconium alloy cladding structural materials. Through metallographic inspection, X-ray detection, and high-speed imaging analysis, an in-depth examination of the weld formation and defects was carried out. Experimental results indicate that as the environmental pressure decreases, the plume phenomenon is effectively controlled, leading to a significant increase in weld penetration depth during vacuum laser welding of zirconium alloy. A comparative study of different oscillation parameters revealed that a circular oscillation trajectory produces the best weld formation. Furthermore, welding simulation studies uncovered the flow characteristics of the molten pool and the periodic variations of the keyhole in vacuum oscillating laser welding. The results show that after 0.25 s, the weld pool reaches a stable state. Within a single oscillation cycle, the keyhole depth reaches its maximum when the laser reaches the endpoint of the circular trajectory. Additionally, under the stirring effect of the laser, the molten pool exhibits a flow pattern consistent with the laser's movement direction.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114519"},"PeriodicalIF":3.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atomic-scale analysis of carbon behavior on Ru(0001), Ru(10–10), and stepped Ru(10–11) surfaces using DFT: Implications for EUV multilayer mirror performance 用DFT分析Ru（0001）、Ru（10-10）和阶梯Ru（10-11）表面上碳的原子尺度行为：对EUV多层反射镜性能的影响

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-19 DOI: 10.1016/j.vacuum.2025.114514

Yu-Qi Chen , Zong-Biao Ye , Fang-Ling Yang , Hong-Rui Tian , Tao Gao , Fu-Jun Gou

{"title":"Atomic-scale analysis of carbon behavior on Ru(0001), Ru(10–10), and stepped Ru(10–11) surfaces using DFT: Implications for EUV multilayer mirror performance","authors":"Yu-Qi Chen , Zong-Biao Ye , Fang-Ling Yang , Hong-Rui Tian , Tao Gao , Fu-Jun Gou","doi":"10.1016/j.vacuum.2025.114514","DOIUrl":"10.1016/j.vacuum.2025.114514","url":null,"abstract":"<div><div>This study employs density functional theory (DFT) to investigation elucidates crystallographic engineering principles governing carbon interaction dynamics across three representative ruthenium (Ru) surfaces: Ru(0001), Ru(10–10), and the stepped Ru(10–11) surfaces. Universally observed hollow-site adsorption preferences manifest site-specific hierarchy variations dictated by local coordination geometries, with covalent-metallic bonding hybridization driving substantial interfacial charge redistribution. These electronic structure variations induce crystallographic anisotropy in adsorption energetics, which fundamentally controls carbon transport mechanisms through surface-dependent kinetic regimes. Using the climbing image nudged elastic band (CI-NEB) method to analyze Ru surface crystallography provides insights into carbon dynamics: The stepped Ru(10–11) surface enables barrierless carbon penetration, but at the cost of structural vulnerability; the Ru(10–10) surface strikes a balance between cleanability and stability through selective kinetic bottlenecks; the Ru(0001) surface delays carbon penetration through cascaded barriers. This research provides an atomic-scale perspective on the challenges associated with removal of impurity carbon atoms from surfaces, offering theoretical insights for optimizing the design of ruthenium-based multilayer mirrors (MLMs) in extreme ultraviolet (EUV) applications.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114514"},"PeriodicalIF":3.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Process parameter optimization and corrosion properties of the AlCrTiV medium entropy alloy films AlCrTiV中熵合金膜工艺参数优化及腐蚀性能研究

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-18 DOI: 10.1016/j.vacuum.2025.114517

Ying Liu , Zhaobing Cai , Juanjuan Hu , Lei Yan , Bingxu Wang , Le Gu

{"title":"Process parameter optimization and corrosion properties of the AlCrTiV medium entropy alloy films","authors":"Ying Liu , Zhaobing Cai , Juanjuan Hu , Lei Yan , Bingxu Wang , Le Gu","doi":"10.1016/j.vacuum.2025.114517","DOIUrl":"10.1016/j.vacuum.2025.114517","url":null,"abstract":"<div><div>In this work, based on an orthogonal experimental design, nine groups of the AlCrTiV medium-entropy alloy (MEA) films were prepared by vacuum magnetron sputtering under different deposition parameters (sputtering power, substrate temperature, and bias voltage), and the influence of deposition parameters on their corrosion property (in 3.5 wt % NaCl solution) was studied in detail. Through range analysis, we identified the optimal process parameters for achieving superior corrosion performance (sputtering power of 800 W, substrate temperature of 400 °C, bias voltage of 100 V). The research results indicate that the sputtering power has the greatest impact on the corrosion properties of the films. Specifically, corrosion resistance diminishes as power increases, with the optimal corrosion resistance observed at 800 W. After corrosion, the surfaces of the films are composed of the oxidized state and the unoxidized state of the metal, and the corrosion mechanism is pitting. The enrichment of Cr and O elements in the pitting pores may be related to the rupture and regeneration of Cr<sub>2</sub>O<sub>3</sub> in the passivation film. The XPS results suggest that enhanced corrosion resistance correlates with a higher concentration of Al<sub>2</sub>O<sub>3</sub> and Cr<sub>2</sub>O<sub>3</sub> in the dense passivation film.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114517"},"PeriodicalIF":3.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasma power-dependent properties of Ga-S-Se films prepared by PECVD for photodetection applications PECVD制备的光探测用Ga-S-Se薄膜的等离子体功率依赖特性

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-18 DOI: 10.1016/j.vacuum.2025.114513

Mikhail A. Kudryashov , Aleksey V. Nezhdanov , Yuliya P. Kudryashova , Aleksandr I. Mashin , Ruslan N. Kriukov , Diana G. Fukina , Maksim A. Vshivtsev , Vladimir M. Malyshev

{"title":"Plasma power-dependent properties of Ga-S-Se films prepared by PECVD for photodetection applications","authors":"Mikhail A. Kudryashov , Aleksey V. Nezhdanov , Yuliya P. Kudryashova , Aleksandr I. Mashin , Ruslan N. Kriukov , Diana G. Fukina , Maksim A. Vshivtsev , Vladimir M. Malyshev","doi":"10.1016/j.vacuum.2025.114513","DOIUrl":"10.1016/j.vacuum.2025.114513","url":null,"abstract":"<div><div>Ga-S-Se films have been prepared by plasma-enhanced chemical vapor deposition (PECVD). In this study, highly pure elemental gallium, sulphur and selenium with 99.9999 vol% purity were utilised as starting materials. A non-equilibrium low-temperature RF-plasma (40.68 MHz) at reduced pressure (0.1 Torr) was the initiator of chemical transformations. The effect of plasma discharge power on the properties of the deposited films was investigated. All samples exhibiting stoichiometry close to GaS<sub>1−x</sub>Se<sub>x</sub> c <em>x</em> ≈ 0.6. The results of X-ray diffraction and Raman spectroscopy indicate that the films are grown in a layered hexagonal structure with lattice parameters <em>a</em> = 3.68 Å и <em>c</em> = 15.77 Å. The surface of the prepared samples is found to be strongly dependent on the used plasma power. The analysis of the transmission spectra indicates that the energy of the indirect band gap decreases from 2.27 to 2.21 eV with increasing plasma discharge power. All samples showed clear photoluminescence peaks at 561–565 nm. Current-voltage characteristic, measured under both dark and illuminated conditions, demonstrate a pronounced photoresponse in Ga-S-Se films deposited at 50 and 70 W, which makes it possible to use such materials for the development of visible matrix photodetectors.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114513"},"PeriodicalIF":3.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduction of iron oxide (alpha-Fe2O3) with a hydrogen rich plasma produced by an Electron Cyclotron Wave Resonance source 用电子回旋波共振源产生的富氢等离子体还原氧化铁（α - fe2o3）

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-18 DOI: 10.1016/j.vacuum.2025.114508

Marko Sikirić , Patrick Choquet , Adrian-Marie Philippe , Nathalie Valle , Kathryn Hadler , Andjelika Bjelajac , Jean-Baptiste Chemin , Joris Kadok , Simon Bulou

{"title":"Reduction of iron oxide (alpha-Fe2O3) with a hydrogen rich plasma produced by an Electron Cyclotron Wave Resonance source","authors":"Marko Sikirić , Patrick Choquet , Adrian-Marie Philippe , Nathalie Valle , Kathryn Hadler , Andjelika Bjelajac , Jean-Baptiste Chemin , Joris Kadok , Simon Bulou","doi":"10.1016/j.vacuum.2025.114508","DOIUrl":"10.1016/j.vacuum.2025.114508","url":null,"abstract":"<div><div>To establish a permanent settlement on the Moon, it is essential to find solutions for producing oxygen (O<sub>2</sub>) and water (H<sub>2</sub>O). One promising method is the in-situ production of H<sub>2</sub>O through the thermal reduction of lunar regolith containing iron oxide (Fe<sub>2</sub>O<sub>3</sub>). This study explores the use of Electron Cyclotron Wave Resonance (ECWR) plasma for reducing Fe<sub>2</sub>O<sub>3</sub>, comparing its energy efficiency to traditional hydrogen (H<sub>2</sub>) thermal reduction. Experiments were conducted using an H<sub>2</sub>/Ar plasma mixture on Fe<sub>2</sub>O<sub>3</sub> thin films at varying substrate temperatures and treatment times. Characterization techniques revealed a multilayer structure forming during the reduction, with a rapid transition to metallic iron (Fe) on the surface after 15 min of treatment. An intermediate Fe<sub>3</sub>O<sub>4</sub> layer developed with extended reduction time, resulting in a distinct three-layered structure. Controlled heating above 200 °C significantly accelerated the reduction process while maintaining the same mechanism. Energy efficiency calculations indicate that H<sub>2</sub>/Ar ECWR plasma can be up to six times more efficient than simple thermal reduction, highlighting its potential as an effective method for lunar oxygen production.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114508"},"PeriodicalIF":3.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144491575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly sensitive ethylene glycol gas sensor based on SnO2/ZnO heterojunction composites 基于SnO2/ZnO异质结复合材料的高灵敏度乙二醇气体传感器

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-17 DOI: 10.1016/j.vacuum.2025.114503

JunTang Dong , Te Duan , TingTing Shao , NingJuan Li , JiaKe Guo , Fuchun Zhang

{"title":"Highly sensitive ethylene glycol gas sensor based on SnO2/ZnO heterojunction composites","authors":"JunTang Dong , Te Duan , TingTing Shao , NingJuan Li , JiaKe Guo , Fuchun Zhang","doi":"10.1016/j.vacuum.2025.114503","DOIUrl":"10.1016/j.vacuum.2025.114503","url":null,"abstract":"<div><div>Ethylene glycol (EG), widely used in industry, poses severe health and environmental risks even at low concentrations, necessitating the development of highly sensitive gas sensors. Although ZnO and SnO<sub>2</sub> are promising semiconductor metal oxides for gas detection, their single-component limitations hinder optimal performance. This work focuses on SnO<sub>2</sub>-decorated ZnO nanosheets, where a heterojunction structure is constructed to overcome individual material drawbacks. The aim is to enhance EG detection performance through compositional tuning and interface engineering. SnO<sub>2</sub>/ZnO composites with varying SnO<sub>2</sub> contents were synthesized via a one-step hydrothermal method and systematically evaluated. The SnO<sub>2</sub>/ZnO-1 sample (1:1 M ratio) exhibited the best performance, achieving a response of 169.89 to 100 ppm EG at 240 °C, a detection limit as low as 158 ppb, high linearity (R<sup>2</sup> = 0.99593), and strong repeatability and selectivity. Structural characterizations confirmed the successful formation of an n–n heterojunction and increased surface area and mesoporosity, enhancing gas adsorption and electron transfer. XPS revealed a higher proportion of adsorbed oxygen (30.21 %) in the composite versus pure ZnO (27.28 %), contributing to better reactivity. This research demonstrates that tailoring heterostructure interfaces and material morphology significantly improves gas sensing performance, offering a promising strategy for reliable and real-time EG detection in environmental and safety monitoring.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114503"},"PeriodicalIF":3.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser-induced structural dynamics of a gold crystal in vacuum 真空中金晶体激光诱导的结构动力学

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-17 DOI: 10.1016/j.vacuum.2025.114515

Sergei A. Aseyev , Boris N. Mironov , Anatoly A. Ischenko , Evgeny A. Ryabov

引用次数: 0

Fabrication of 4-inch single-crystalline InP thin film on Si substrate by ion-cutting technique with wafer bonding at elevated temperature 采用离子切割技术在Si衬底上制备4英寸单晶InP薄膜

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-16 DOI: 10.1016/j.vacuum.2025.114509

Tian Liang , Shangyu Yang , Shujie Wang , Jialiang Sun , Jiajie Lin , Ailun Yi , Weijian Zheng , Min Zhou , Yi Yang , Niefeng Sun , Tiangui You , Xin Ou

{"title":"Fabrication of 4-inch single-crystalline InP thin film on Si substrate by ion-cutting technique with wafer bonding at elevated temperature","authors":"Tian Liang , Shangyu Yang , Shujie Wang , Jialiang Sun , Jiajie Lin , Ailun Yi , Weijian Zheng , Min Zhou , Yi Yang , Niefeng Sun , Tiangui You , Xin Ou","doi":"10.1016/j.vacuum.2025.114509","DOIUrl":"10.1016/j.vacuum.2025.114509","url":null,"abstract":"<div><div>The integration of InP thin films onto silicon substrates holds significant promise for optoelectronic device applications. However, achieving large-area, high-quality single-crystal InP films on silicon remains a major challenge. In this work, 4-inch, 200 nm-thick single-crystal InP thin films were successfully transferred onto silicon substrates using ion-cutting of an InP/InGaAs epitaxial structure. To address thermal stress issues during the ion-cutting process for large-area heterogeneous integration wafers, finite element simulations were conducted to analyze thermal stress distributions under different bonding and annealing temperatures. The simulation results revealed abrupt thermal stress concentrations at the edges of the InP/Si bonding pairs, which could be mitigated by bonding at an elevated temperature of 55 °C. The InP/InGaAs epitaxial structure effectively reduced the residual H-ion concentration of the InP film after annealing, with defects localized in the epitaxial InGaAs layer. Following the selective etching of the InGaAs layer, a high-quality 4-inch InP thin film was obtained, exhibiting a surface roughness of 0.347 nm, a full width at half maximum (FWHM) of 212.4 arcsec for the X-ray rocking curve, and a thickness uniformity of 98 %. The large-area InP/Si heterogeneous integration substrate fabricated by ion-cutting with wafer bonding at elevated temperature represents a promising material platform for optoelectronic integration and high-speed electronic applications.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114509"},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrahigh-strength Cu-10Fe-0.2Mg in situ composites via ultra-nano precipitation within nanolamellar architectures 基于纳米层状结构的超高强度Cu-10Fe-0.2Mg原位复合材料

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-16 DOI: 10.1016/j.vacuum.2025.114511

W. Chen , X.N. Hu , J. Jiang , J.W. Wang , J.L. Guo , D. Wu , J. Zou , Z. Hu , Q. Hu

{"title":"Ultrahigh-strength Cu-10Fe-0.2Mg in situ composites via ultra-nano precipitation within nanolamellar architectures","authors":"W. Chen , X.N. Hu , J. Jiang , J.W. Wang , J.L. Guo , D. Wu , J. Zou , Z. Hu , Q. Hu","doi":"10.1016/j.vacuum.2025.114511","DOIUrl":"10.1016/j.vacuum.2025.114511","url":null,"abstract":"<div><div>Cu-Fe in situ composites face Hall-Petch strengthening saturation when Fe filaments reach nanoscale dimensions. The present study addresses this limitation through a strategy of “ultra-nano precipitation within nanolamellar architectures”. By adding 0.2 wt% Mg to a Cu-10Fe alloy and applying multi-stage thermo-mechanical processing, a Cu-10Fe-0.2Mg in situ composite was developed, featuring ultrafine CuMg<sub>2</sub> nanoprecipitates (∼6.8 nm) embedded in the Cu nanolamellar matrix. This optimized material achieves a 23 % strength enhancement compared to its Mg-free counterpart, while retaining 96 % of the base conductivity and comparable uniform elongation. The improvement in mechanical properties can be attributed to the Orowan strengthening effect from the introduced CuMg<sub>2</sub> nanoprecipitates and their ability to promote work hardening. This ultra-nano precipitation within nanolamellae strategy is envisaged to be readily adaptable to other Cu-bcc in situ composites, offering broad implications for next-generation material engineering.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114511"},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study on laser-induced arc discharge characteristics of spacecraft high-voltage solar array 航天器高压太阳能电池阵激光感应电弧放电特性实验研究

IF 3.8 2区材料科学

Vacuum Pub Date : 2025-06-16 DOI: 10.1016/j.vacuum.2025.114510

Dejie Wei , Jianwen Wu , Liying Zhu , Ziang Tong , Shangwen Xia , Jingyi Lin , Longfei Liu

{"title":"Experimental study on laser-induced arc discharge characteristics of spacecraft high-voltage solar array","authors":"Dejie Wei , Jianwen Wu , Liying Zhu , Ziang Tong , Shangwen Xia , Jingyi Lin , Longfei Liu","doi":"10.1016/j.vacuum.2025.114510","DOIUrl":"10.1016/j.vacuum.2025.114510","url":null,"abstract":"<div><div>With the expanding application of the high-energy laser technology in space, the risk of laser-induced arc discharge in large-area solar arrays has become a significant concern, posing a substantial threat to spacecraft safety. In this study, based on the charging and discharging phenomenon of high-voltage solar array in LEO (Low Earth Orbit) plasma environment, combined with the theory of laser induced plasma, the mechanism of laser induced arc discharge is analyzed. The power density threshold and volt-ampere characteristics of laser-induced arc discharge of solar array with different string spacing are measured experimentally, and the morphological evolution characteristics of laser-induced arc discharge are captured by the high-speed video camera. The rapid response Langmuir four-probe method and colorimetric temperature measurement method are used to diagnose the discharge plasma. The influence of laser energy on the discharge plasma and the evolution characteristics during the discharge process are obtained. This study can provide important reference for the research of laser-induced arc discharge characteristics and protection design of spacecraft high-voltage solar array.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"240 ","pages":"Article 114510"},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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