Affiliation:
1. National University of Defense Technology
Abstract
A melt-spinnable precursor for SiC based fibers was prepared from blend polymers of polycarbosilane (PCS) and modified polymethylsilane (M-PMS). The blend polymers cured at 320°C are different from M-PMS and PCS. The ceramic yield of these blend polymers is about 83%. The C/Si ratio of M-PMS/PCS derived ceramics (pyrolyzed at 1250°C) is linear to the content of MPMS in M-PMS/PCS. After melt spinning, thermal oxidation curing, and pyrolysis, Si-C-O fibers were obtained. The diameter and the tensile strength of the resulted fibers are 16.5μm and 1.62GPa, respectively.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference10 articles.
1. M. Birot, J. P. Pillot and J. Dunogue`s: Chem. Rev. Vol. 95(1995), p.1443.
2. D. Seyferth, G. Wiseman, J. Schwark, Y. Yu and C. Poutasse: Inorganic and Organometallic Polymers, ed. M. Zeldin, and H. Allcock, American Chemical Society, Washington, DC, 1998, p.143.
3. T. Nozawa, K. Ozawa, Y. Katoh, and A. Kohyama: Mater. Trans. Vol. 45 (2004), p.307.
4. S. Yajima, J. Hayashi and M. Omori, Chem. Lett.: 1975, p.931.
5. Z. F. Zhang, F. Babonneau, R. M. Laine, Y. Mu, J. F. Harrod and J. A. Rahn: J. Am. Ceram. Soc., Vol. 74(1991), p.670.
Cited by
1 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