首页期刊导航|等离子体科学和技术（英文版）
期刊信息/Journal information
等离子体科学和技术（英文版）
等离子体科学和技术（英文版）

万元熙、谢纪康

月刊

1009-0630

pst@ipp.ac.cn

0551-5591617，5593176

230031

合肥 中国科学院等离子体物理研究所PST编辑部

等离子体科学和技术（英文版）/Journal Plasma Science and TechnologyCSCD北大核心EISCI
查看更多>>“Plasma Science & Technology”（等离子体科学和技术）是中国科学院等离子体物理研究所主办的英文版学术期刊。其宗旨是向国内外报导我国等离子体科学界和国外科学家在高温等离子体、低温等离子体、天体空间等离子体、放电等离子体和激光等离子体等各个领域在基础研究、实验探索、装置建设和应用开发中所取得的具有新意的学术成果或阶段性成果，并刊登反映这些学科国际、国内发展新方向、新动态的综述，以及与等离子体有关的交叉学科和应用方面的最新成就等。
正式出版
收录年代

    Ag enhanced CuS nanoflower catalyst coupling dielectric barrier discharge plasma for disinfection performance and mechanism

    王润王蔓杨周铃王明宇...
    99-109页
    查看更多>>摘要：In this study,the hydrothermal method was employed to grow submicron CuS on carbon cloth(CC),and the photoreduction method was used to grow Ag nanoparticles on the CuS submicron flowers,thus forming the Ag/CuS/CC catalytic electrode.The application of Ag/CuS/CC electrode-coupled dielectric barrier discharge(DBD)plasma in the disinfection of pathogenic bacteria in water was studied.The Ag/CuS/CC electrode exhibits strong antibacterial activity,and under an external voltage of 30 V,the degradation efficiency of Bacillus subtilis reaches 99.99％within 15 min without regeneration.After five cycles,the inactivation rate of Bacillus subtilis reached 99.99％within 25 min.The practical applicability of the Ag/CuS/CC-coupled DBD system for treating actual wastewater was evaluated,and the changes in biological toxicity were investigated.The results indicate that the prepared Ag/CuS/CC coupled DBD has great potential for safe disinfection of pathogenic bacteria in water through integrated processes.
      原文链接:
    • 万方数据
    • 维普

    Hardening mechanism and thermal-solid coupling model of laminar plasma surface hardening of 65 Mn steel

    曹修全王林徐浩铭胡光忠...
    110-120页
    查看更多>>摘要：In the present work,the laminar plasma surface hardening method is employed to enhance the service life of metal components fabricated from 65 Mn steel.The mechanical and wear behaviors of the laminar plasma surface hardened 65 Mn steel were analyzed.The martensite transition transformation of the temperature of the laminar plasma-hardened 65 ferrite Mn steel was determined by a thermal-solid coupling model.Based on the orthogonal experimental results,the optimal hardening parameters were confirmed.The scanning velocity,quenching distance and arc current are 130 mm/min,50 mm and 120 A,respectively.The pearlites and ferrites are transformed into martensites in the hardened zone,while the ratio of martensite in the heat-affected zone decreases with the increase in the hardening depth.Compared to the untreated 65 Mn steel,the average hardness increases from 220 HV0.2 to 920 HV0.2 in the hardened zone and the corresponding absorbed power increases from 118.7 J to 175.5 J.At the same time,the average coefficient of friction(COF)decreases from 0.763 to 0.546,and the wear rate decreases from 5.39×10-6 mm3/(N m)to 2.95×10-6 mm3/(N·m),indicating that the wear resistance of 65 Mn steel could be significantly improved by using laminar surface hardening.With the same hardening parameters,the depth and width of the hardened zone predicted by the thermal-solid coupling model are 1.85 mm and 11.20 mm,respectively,which are in accordance with the experimental results;depth is 1.83 mm and width is 11.15 mm.In addition,the predicted hardness distributions of the simulation model are in accordance with the experimental results.These results indicate that the simulation model could effectively predict the microstructure characteristics of 65 Mn steel.
      原文链接:
    • 万方数据
    • 维普

    Influence of cyclic ignition and steady-state operation on a 1-2 A barium tungsten hollow cathode

    王福锋孟天航宁中喜朱悉铭...
    121-131页
    查看更多>>摘要：Booming low-power electric propulsion systems require 1-2 A hollow cathodes.Such cathodes are expected to go through more frequent ignitions in the low orbit,but the impact of cyclic ignitions on such 1-2 A barium tungsten hollow cathodes with a heater was not clear.In this study,a 12,638-cyclic ignition test and a 6,000-hour-long life test on two identical cathodes were carried out.The discharge voltage of the cathode and the erosion of the orifice after cyclic ignition were all larger than that of the cathode after stable operation.This indicated that the impact of cycle ignition on the discharge performance of a low current BaO-W cathode with a heater was higher than that of stable operation.The results of the ion energy distribution function measured during the ignition period indicated that the main reason for the orifice expansion was ion bombardment.Therefore,it was necessary to pay attention to the number of ignitions for the lifetime of this kind of cathode.
      原文链接:
    • 万方数据

    Enhancing silicon spectral emission in LIBS using Tesla coil discharge

    崔爽刘扬陈安民金明星...
    132-139页
    查看更多>>摘要：Laser-induced breakdown spectroscopy(LIBS)is a powerful technique for elemental analysis,offering rapid analysis,minimal sample preparation,wide elemental coverage,and portability.To enhance the detection sensitivity of LIBS,increasing the spectral emission intensity is crucial.This paper explores the use of Tesla coil(TC)discharge as an alternative to spark discharge in silicon LIBS.The study examines the influence of TC discharge on both time-integrated and time-resolved spectra,with and without TC discharge;the corresponding electron temperature and density are obtained.The results show that TC discharge significantly amplifies the spectral intensity,improving signal sensitivity in LIBS analysis.Specifically,in the laser energy range from 7.4 to 24.0 mJ,TC discharge increased the average spectral line intensities of Si(Ⅱ)385.60 nm and Si(Ⅰ)390.55 nm by factors of 8.4 and 5.1,respectively.Additionally,the average electron temperature and density were enhanced by approximately 3.2％and 4.2％,respectively,under TC discharge.The advantages of TC discharge include higher energy deposition,extended discharge duration,reduced electrode erosion,and enhanced safety.This research contributes to advancing LIBS technology and expanding its applications in various fields.
      原文链接:
    • 万方数据
    • 维普

    Mutual effects between a gliding arc discharge and a premixed flame

    朱家健李乐田轶夫万明罡...
    140-149页
    查看更多>>摘要：Mutual effects between a gliding arc(GA)discharge at atmospheric pressure and a premixed CH4/air flame were experimentally investigated.Effects of the flame on the GA were studied using simultaneous measurements of the current,the voltage,and the instantaneous images of the plasma columns.The GA in the flame has a thicker and more diffusive plasma column,and it is more frequently ignited at a smaller breakdown voltage than that in the air.The GA extension velocity and the gliding velocity in the flame are larger than those in the air.The electrode voltage drop of the GA discharge in the flame is about 160 V,whereas that in the air is about 220 V.Compared with the GA in the air,the different features of the GA in the flame can be explained by high-temperature,weakly ionized,and species-abundant environment that are generated by the premixed CH4/air flame.Effects of the gliding arc discharge on the premixed flames were demonstrated using planar laser-induced fluorescence of hydroxyl radicals(OH)and formaldehyde(CH2O).OH and CH2O can be formed in the CH4/air mixture in the presence of the GA due to kinetic effects,and the increase of OH and CH2O shows the great potential of the GA for combustion enhancement.
      原文链接:
    • 万方数据
    • 维普

    Thrust estimate method of an on-orbit Hall thruster using Hall drift current

    任姿颖魏立秋刘泽欣扈延林...
    150-159页
    查看更多>>摘要：In order to realize the thrust estimation of the Hall thruster during its flight mission,this study establishes an estimation method based on measurement of the Hall drift current.In this method,the Hall drift current is calculated from an inverse magnetostatic problem,which is formulated according to its induced magnetic flux density detected by sensors,and then the thrust is estimated by multiplying the Hall drift current with the characteristic magnetic flux density of the thruster itself.In addition,a three-wire torsion pendulum micro-thrust measurement system is utilized to verify the estimate values obtained from the proposed method.The errors were found to be less than 8％when the discharge voltage ranged from 250 V to 350 V and the anode flow rate ranged from 30 sccm to 50 sccm,indicating the possibility that the proposed thrust estimate method could be practically applied.Moreover,the measurement accuracy of the magnetic flux density is suggested to be lower than 0.015 mT and improvement on the inverse problem solution is required in the future.
      原文链接:
    • 万方数据
    • 维普

    Instructions for Manuscript Preparation

    前插1页
      原文链接:
    • 万方数据
    • 维普