Preparation Process and Optimization Design for Composites Rudderpost in the Long-Time High Temperature Environment
- 1 Science and Technology on Space Physics Laboratory, Beijing, China
- 2 Science and Technology on Space Physics Laboratory, Beijing, China
- 3 Science and Technology on Space Physics Laboratory, Beijing, China
- 4 Science and Technology on Space Physics Laboratory, Beijing, China
- 5 Science and Technology on Space Physics Laboratory, Beijing, China
- 6 Science and Technology on Space Physics Laboratory, Beijing, China
Abstract
Rudder is an important part for the glider aircraft. In order to satisfy the long-time high-velocity for the near-space vehicle in the atm osphere, the light- weight, high-stiffness and high-strength all-composites rudderpost is required urgently to be prepared. The all-composites rudderpost can keep high rudder efficiency in the high temperature environment. Based on the technique require-ment of high-performance composites rudder, a 3D C/SiC rudderpost was manufactured by the CVI-CMC-SiC [1] processes. It was found during rudderpost testing that the high-temperature mechanical properties decreased and had large discretization. The analysis of the failure mechanisms was conducted by FTA method to recognize the failure modes and main reasons for rudderpost abnormal fracture and to reproduce the fracture phenomenon, which could guide production company to modify their preparation process control. Then the modified processes were proved to be validated. And the stability and reliability of the production performances were improved.
- Krenkel, W. (2001) Cost Effective Processing of CMC Composites by Melt Infiltration (LSI-Process). Ceram Eng Sci Proc, 22, 443-454. https://doi.org/10.1002/9780470294680.ch52
- Zhang, L.-T., Cheng, L.-F. and Xu, Y.-D. (2003) Progress in Research Work of New CMC-SiC. Aeronautical Manufacturing Technology, 1, 24-32.
- Ran, L.-P., Yi, M.-Z. and Chen, B. (2005) Influence of Different C/C Performs on Microstructure of C/C-SiC Composites Fabricated by RMI C/C. The Chinese Journal of Nonferrous Met-als, 15, 1208-1213.
- Kim, B.G., Choi, Y., Lee, J.W., et al. (2000) Characterization of a Silicon Carbide Thin Layer Prepared by a Self-Propagation High Temperature Synthesis Reaction. Thin Solid Films, 375, 82-86. https://doi.org/10.1016/S0040-6090(00)01266-9
- Yan, Z.-Q., Xiong, X., Xiao, P., Jiang, S.-Z. and Huang, B.-Y. (2007) Non-Isothermal Oxidation Behavior of C/SiC Composites Rapidly Prepared by Molten Silicon Infiltration Technique. The Chinese Journal of Nonferrous Metals, 17, 1597-1603.