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Ceramic fibers from Si-B-C polymer precursorsNon-oxide ceramics such as silicon carbide (SiC), silicon nitride (Si3N4), and silicon borides (SiB4, SiB6) have thermal stability, oxidation resistance, hardness, and varied electrical properties. All these materials can be prepared in a fiber form from a suitable polymer precursor. The above mentioned fibers, when tested over a temperature range from 25 to 1400 C, experience degradation at elevated temperatures. Past work in ceramic materials has shown that the strength of ceramics containing both carbides and borides is sustained at elevated temperatures, with minimum oxidation. The work presented here describes the formation of ceramic fibers containing both elements, boron and silicon, prepared via the polymer precursor route previously reported by the authors, and discusses the fiber mechanical properties that are retained over the temperature range studied.
Document ID
19930058564
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Riccitiello, S. R.
(NASA Ames Research Center Moffett Field, CA, United States)
Hsu, M. S.
(NASA Ames Research Center Moffett Field, CA, United States)
Chen, T. S.
(HC Chem Research & Service Corp. San Jose, CA, United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1993
Publication Information
Publication: SAMPE Quarterly
Volume: 24
Issue: 3
ISSN: 0036-0821
Subject Category
Nonmetallic Materials
Accession Number
93A42561
Distribution Limits
Public
Copyright
Other

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