The antioxidation properties of the in-situ ceramic from pyrolyzing polysilicone preceramic

Abstract

A systematic research on the pyrolysis process of polymethysilicone (SAR-2) and the thermostability of the pyrolysis residue was made by the thermogravimetric analysis, DTA and infrared spectroscopy. The experimental results indicate that the pyrolysis residue of SAR-2 converted into the amorphous SiC_xO_4−x phase above 900°C, the residue at 1200°C is the most thermostable and antioxidant. It is suitable to be used as polysilicone preceramic.

Keywords

polysilicone / preceramic / in-stu ceramic

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