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 Al 2 O 3 , Si 3 N 4 and AlN. A correlation is proposed between the surface potential change over time and their broadband dielectr… Show more
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