Title :
Temperature dependence of surface potential decay of ceramic materials
Author :
Roske, L. ; Lebey, Th ; Valdez-Nava, Z. ; Cambronne, J.-P.
Author_Institution :
Lab. Laplace, Univ. de Toulouse, Toulouse, France
Abstract :
The aim of this paper is to determine the influence of the temperature on the surface potential decays after corona charging in a needle-to-plane arrangement for different ceramic materials. The materials under study are generally used as substrates in Power Electronics modules and their behaviours in the high temperature range are insufficiently known. A comparison is made between Al2O3, Si3N4 and AlN. A correlation is proposed between the surface potential change over time and their broadband dielectric response.
Keywords :
ceramics; corona; power electronics; surface potential; broadband dielectric response; ceramic materials; corona charging; power electronic modules; surface potential decay; temperature dependence; Ceramics; Corona; Electric potential; Surface impedance; Temperature; Temperature measurement;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2012 Annual Report Conference on
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-1253-0
Electronic_ISBN :
0084-9162
DOI :
10.1109/CEIDP.2012.6378880