Influence of crystalline additives to silicone rubber based composites on their microstructure after ceramization process
Zbigniew Pędzich, Dariusz M. Bieliński, Jan Dul, Magdalena Zarzecka-Napierała
Quarterly No. 4, 2011 pages 342-346
DOI:
keywords:
abstract The paper presents the results of investigations on the composition of mineral components used for ceramizable silicone rubber-based composites. By using different crystalline phase additives, it is possible to assure the proper course of composite degradation and its transformation during the ceramization process. Three crystalline components were tested as an additive to silicone rubber - bentonite, kaolinite and wollastonite. They were added simultaneously with the glassy phase. These compounds during firing evolved (decomposed) and introduced into the ceramized material a polycrystalline structure, responsible for its properties. The characteristic of the ceramized composite body created during heating was investigated by mercury porosimetry. The porosity evolution was described in the range of 600÷1050°C.