{"title":"Field electron emission from large-area Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-x/ superconducting films in vacuum","authors":"J. Elizondo, J. Taylor","doi":"10.1109/14.231531","DOIUrl":null,"url":null,"abstract":"Thin films of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-x/ deposited on copper and stainless steel electrodes by a flame spray method were tested in vacuum at electric fields ranging from 10 to 100 kV/cm. Field electron emission current was measured from the surfaces before and after the application of the film. Metallic surfaces, of 20 cm/sup 2/ in surface, cooled to LN/sub 2/ ( approximately 90 K) temperatures showed a 1.75 to 2*increase in current. The coated surfaces showed a 5 to 6* increment in current when compared to room temperature metallic surfaces. Stainless steel electrodes with a surface area of 20 cm/sup 2/, which were coated by a flame spray process and tested under vacuum, showed a similar behavior. Coating procedures and experimental results are shown. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1993-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Electrical Insulation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/14.231531","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Thin films of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-x/ deposited on copper and stainless steel electrodes by a flame spray method were tested in vacuum at electric fields ranging from 10 to 100 kV/cm. Field electron emission current was measured from the surfaces before and after the application of the film. Metallic surfaces, of 20 cm/sup 2/ in surface, cooled to LN/sub 2/ ( approximately 90 K) temperatures showed a 1.75 to 2*increase in current. The coated surfaces showed a 5 to 6* increment in current when compared to room temperature metallic surfaces. Stainless steel electrodes with a surface area of 20 cm/sup 2/, which were coated by a flame spray process and tested under vacuum, showed a similar behavior. Coating procedures and experimental results are shown. >
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