Carbon-rich ceramic composites from ethynyl aromatic precrusors
- Hurwitz, F. I.
- JAN 1, 1986.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available. and Free-to-read Unrestricted online access
- A number of polyfunctional aromatic acetylenes thermally polymerize at low temperatures (180 C) and pyrolyze with greater than 90 char yield. In nonoxidizing environments, they are thermally stable to 1450 C. These monomers were chosen as the basis of a model system to study the fabrication and mechanical properties of continuous filament ceramic matrix composite. Composites were fabricated from aryl poly(acetylenes), SiC particulate filler and graphite, Avco SiC, Nicalon and Nextel fibers. Microstructure, physical and mechanical properties are reported.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19860020436., Accession ID: 86N29908., NASA-TM-88812., NAS 1.15:88812., E-3167., and Annual Conference on Composites and Advanced Ceramic Materials; 19-24 Jan. 1986; Cocoa, Beach, FL; United States.
- No Copyright.
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