Effects of electromagnetic microwave irradiation on the stress relaxation behaviour of a silicone elastomer seal

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

View graph of relations


Original languageEnglish
Pages (from-to)203-207
Journal / PublicationInternational Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry
Issue number2
Publication statusPublished - 1991
Externally publishedYes


Recent results have shown that polymeric composites can be cured using electromagnetic microwave radiation. Such a process would still require the use of a vacuum bagging system, which uses silicone rubbers both as a seal ribbing, as well as a sheet material for the bagging itself. This paper reports on the effects of electromagnetic microwave radiation on the stress relaxation of some filled silicone seals and sheets used in the vacuum bagging procedure. They were investigated for both compression and tension modes. A radiation shift factor has been used to obtain a master curve referenced to the unirradiated curve. A general power law relationship was found to occur between the radiation shift factors and the total radiation dosage, giving a value of 0.538 and 0.455 for the power parameter for compression and tension modes respectively. © 1991 Pergamon Press plc

Citation Format(s)