XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.最新文献_第2页

Three modes of plasma expansion in a vacuum arc 真空电弧中等离子体膨胀的三种模式

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418634

I. A. Krinberg

引用次数: 2

Influence of surface pores (defects) on vacuum insulation 表面气孔(缺陷)对真空绝缘的影响

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418602

N. V. Tatarinova

引用次数: 2

DC vacuum are in the axially-symmetric magnetic field 直流真空处于轴对称磁场中

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418631

D. Alferov, V. Ivanov, L. Petrov, V. Sidorov, Y. Yashnov

引用次数: 2

Influence of the material nature (Ag, Cu, Al, W, C) on the arc root characteristics at the cathode 材料性质(Ag、Cu、Al、W、C)对阴极电弧根特性的影响

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418648

M. Abbaoui, A. Lefort, S. Clain

引用次数: 1

Model of a rotating vacuum are by the coupling of a simple are model with a commercial 3D FEM 旋转真空的模型是由一个简单的模型与一个商业化的三维有限元耦合建立的

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418659

J. Fontchastagner, O. Chadebec, H. Schellekens, G. Meunier

引用次数: 1

Movement, heating and evaporation of droplets in near-cathode region of vacuum arc 真空电弧近阴极区液滴的运动、加热和蒸发

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418647

A. Kozyrev, A. Shishkov

引用次数: 4

Investigation of pulsed HV breakdown between treated stainless steel and aluminum electrodes with 2 to 8 mm gaps 脉冲高压击穿的研究处理不锈钢和铝电极之间的2至8毫米的间隙

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418608

D.J. Johnson, M. Savage, R. Sharpe, D. Proskurovsky, A. Batrakov

{"title":"Investigation of pulsed HV breakdown between treated stainless steel and aluminum electrodes with 2 to 8 mm gaps","authors":"D.J. Johnson, M. Savage, R. Sharpe, D. Proskurovsky, A. Batrakov","doi":"10.1109/DEIV.2004.1418608","DOIUrl":"https://doi.org/10.1109/DEIV.2004.1418608","url":null,"abstract":"The paper describes an investigation of the HV breakdown mechanism between stainless steel and aluminum electrodes. The stainless steel electrodes have been treated with pulsed e-beam surface melting (EBEST), hydrogen vacuum furnace firing (HVFF), mechanical polish, and given a chromium oxide coating. The aluminum electrodes with various surface roughness and anodized coatings are also studied. Electrodes are cleaned in a littered clean air environment to minimize effects of air-born micro-particles. Breakdown tests were performed with a 160-ns- FWHM, l-cos(wt), voltage pulse of up to a 500 kV. The tests show that the breakdown voltage drops approximately as the square root of the gap for metal surfaces with gaps between 2 and 8 mm. The hold-off is about 1 MV/cm for 2.5 mm gaps for EBEST and mechanically polished stainless steel and 20% smaller for polished and machined aluminum. The standard model to explain this dependence of breakdown requires minute particles to cross the gap and initiate breakdown by forming plasma 011 impact to an electrode. For the short pulses used here the particles would need to be nanoparticles with only few hundred atoms. Optical diagnostics of breakdown arcs is presented to shed light on the perplexing physics limiting HV hold-off in these tests.","PeriodicalId":137370,"journal":{"name":"XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123026962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The creation of the narrow electron and ion beams for a modification of a surface in nanometric scale 用窄电子束和离子束来修饰纳米尺度的表面

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418597

O. L. Golubev, V. N. Shrednik

引用次数: 0

Investigation of the rotating arc plasma generated in transverse magnetic field (TMF) contacts of vacuum interrupter 真空灭弧器横向磁场触点产生旋转电弧等离子体的研究

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418629

D. Pavelescu, V. Braic, F. Gherendi, M. Braic, C. Nitu, M. Balaceanu, G. Dumitrescu, C. Pavelescu, S. Niţu, P. Anghelita

引用次数: 3

Electrospun non-woven mats of EVOH EVOH静电纺无纺布垫

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 2004-09-27 DOI: 10.1109/DEIV.2004.1418615

Yujun Zhang, Yu-dong Huang, Feng-fu Li, Lei Wang, Zhenhao Jin

{"title":"Electrospun non-woven mats of EVOH","authors":"Yujun Zhang, Yu-dong Huang, Feng-fu Li, Lei Wang, Zhenhao Jin","doi":"10.1109/DEIV.2004.1418615","DOIUrl":"https://doi.org/10.1109/DEIV.2004.1418615","url":null,"abstract":"The poly(ethylene-co-vinyl alcohol) (EVOH) non-woven fabrics are prepared by electrospinning technique. The influence factors - the spinning electric voltage (Vs), capillary-screen distance (C-SD), aqua density (W E ) which affect the fiber diameter and their distribution of the tiny pore in the non-woven fabrics are discussed and the SEM is utilized to characterize the features of the non-woven fabrics. The study results show that the non-woven fabrics could be prepared by electrospinning technique when the Vs is 10∼40KV, C-SD is 20∼30cm, and the diameter of the fiber electrospun on this condition will be around 0.8∼5.0pm under the solvent of isopropyl alcohol/ water and 50∼200nm under the solvent of N,N'-dimethylacetamide; The diameter of the fiber will be affected mainly by W E , V S during the electrospinning, the diameter of the fiber increased with W E and decreased with V S ; the diameter of the pore in the non-woven fabrics will be influenced greatly by the condition of receiver-plate and decrease with V S . Finally the changes of relative surface potential with decay time caused by corona discharge are tested on the electrospun EVOH non-woven fabrics in this article.","PeriodicalId":137370,"journal":{"name":"XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115987035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0