Affiliation:
1. National University of Defense Technology
Abstract
A novel, online-joining of C/SiC-C/SiC method, precursor infiltration and pyrolysis, was used
to obtain high temperature stable joining SiC composition, while joining process was highly consistent
with C/SiC preparation process. The compositions of joining ingredients and process parameters were
investigated to determine the maximum joining strength of C/SiC-C/SiC at room and high temperatures.
The optimum weight ratio of (polycarbosilane/divinyl benzene)/SiC powder is 3/1, and ramping rate of
pyrolysis is 2°C/min, and cycles of infiltration and pyrolysis is 6. The flexural strengths of joining
components remained stable up to 1200°C (50.8MPa), but decreased to 30.5MPa at 1500°C, while the
tensile strengths remained rather stable (20.5MPa) up to 1500°C, and decreased to 8.4MPa at 1800°C.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference4 articles.
1. H.G. Wulz, H. Stark, and U. Trabandt: AIAA-2000-2435 (2000).
2. J. Zheng: Ph.D. Thesis (Iowa State University, Ames, Iowa, USA, 2000).
3. P. Colombo: J. Mater. Sci. Vol. 33 (1998), p.2405.
4. S. Barton: USA 6 214 472 (2001). Fig. 2 Fracture surfaces of joining samples (a: composite surface; b: joining surface).
Cited by
13 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献