Fabrication and Life Prediction of SSiC Ceramic Joint Joined with Silicon Resin YR3370

Joints between sintered silicon carbide (SSiC) were produced using a polysiloxane silicon resin YR3370 (GE Toshiba Silicones) as joining material. Samples were heat treated in a 99.99% nitrogen flux at temperatures ranging from 1 100 ℃ to 1 300 ℃. Three point bending strength of the joint reached the maximum of 179 MPa as joined at 1 200 ℃. The joining layer is continuous, homogeneous and densified and has a thickness of 2 tm -5 μm. The joining mechanism is that the amorphous silicon oxycarbide (SixOyCz) ceramic pyrolyzed from silicon resin YR3370 acts as an inorganic adhesive to SSiC substrate, which means the formation of the continuous Si-C bond structure between SixOyCz structure and SSiC substrate. Life prediction of the ceramic joint can be realized through the measurement of the critical time of the joint after the cyclic loading test.

作 者： YUAN Xiao-kun XU Bing-she   作者單位： YUAN Xiao-kun(School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China)

XU Bing-she(College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China) 

刊 名： 中國航空學(xué)報（英文版）  ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS  年，卷(期)： 2007 20(1)  分類號： V2  關(guān)鍵詞： silicon resin   YR3370   SiC ceramic   ceramic joining   joint life  

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