Surface charge decay on HTV silicone rubber: effect of material treatment by corona discharges
Artikel i vetenskaplig tidskrift, 2012

Surface charge decay on thick flat samples of high temperature vulcanized silicone rubber is studied prior and after ac and dc corona pre-treatments. It is found that the charge decay rate on the material exposed to ac corona becomes much higher and sensitive to moisture content in the surrounding air. These features are associated with an increased surface conductivity and formation of a silica-like layer on the polymeric surface, both resulting from ac corona treatment. In contrast, characteristics of the charge decay on the material exposed to dc corona are found to be similar to that measured on untreated samples.

surface conductivity

bulk conduction

silicone rubber

surface potential

trap density distributions

surface charge

Corona treatment

Författare

Sarath Kumara

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Bin Ma

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Yuriy Serdyuk

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Stanislaw Gubanski

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

IEEE Transactions on Dielectrics and Electrical Insulation

1070-9878 (ISSN)

Vol. 19 6 2189-2195

Ämneskategorier

Elektroteknik och elektronik

Styrkeområden

Materialvetenskap