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Author Tewari, Somesh Vinayak ♦ Sharma, Archana ♦ Mittal, K. C.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CHARGE CARRIERS ♦ COMPARATIVE EVALUATIONS ♦ DENSITY ♦ DIELECTRIC MATERIALS ♦ ELECTRIC POTENTIAL ♦ ENERGY LEVELS ♦ FLASHOVER ♦ INTERFACES ♦ NITROGEN ♦ PERMITTIVITY ♦ PMMA ♦ PRESSURE DEPENDENCE ♦ SOLIDS ♦ SURFACES ♦ TRAPPING
Abstract An experimental investigation of surface flashover characteristics of PMMA and POM is studied in compressed nitrogen gas environment with nitrogen as the background gas. The operating pressure range is from 1kg/cm{sup 2} to 4kg/cm{sup 2}. It is observed that the breakdown voltage of PMMA is higher than POM owing to a higher permittivity mismatch between POM- nitrogen interface as compared to the PMMA- nitrogen interface. The reduction in spacer efficiency with pressure for PMMA is 11% as compared to POM which shows a higher reduction of 18%. This paper further emphasizes on the role of energy level and density of charge carrier trapping centers for a reduced breakdown voltage in POM as compared to PMMA.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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