Effects of Oxygen Content on the Properties of Ultra-High-Temperature Resistant Si-Al-C Fibers

Abstract:

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Ultra-high-temperature resistant Si-Al-C fibers derived from polyaluminocarbosilane were prepared by the procedures of melt-spinning, air curing and heated at 1800°C. It was found that oxygen content in the cured fibers has great influences on the chemical composition of the Si-Al-C fibers and its crystalline behavior during sintering. When oxygen content of cured fibers was too high, crystallite grains in the fiber would grow up. Oxygen evolvement in the fiber during the preparation was studied in detail by chemical analysis. It was found that oxygen is liberated mainly as CO gas from 1300°C to1600°C.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1774-1777

DOI:

10.4028/www.scientific.net/KEM.368-372.1774

Citation:

D. F. Zhao et al., "Effects of Oxygen Content on the Properties of Ultra-High-Temperature Resistant Si-Al-C Fibers", Key Engineering Materials, Vols. 368-372, pp. 1774-1777, 2008

Online since:

February 2008

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Price:

$35.00

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