FABRICATION OF OXIDATION-RESISTANT CARBON-FIBER BORON-NITRIDE MATRIX COMPOSITES

Authors
KIM DP ECONOMY J
Citation
Dp. Kim et J. Economy, FABRICATION OF OXIDATION-RESISTANT CARBON-FIBER BORON-NITRIDE MATRIX COMPOSITES, Chemistry of materials, 5(9), 1993, pp. 1216-1220
Citations number
30
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
5
Issue
9
Year of publication
1993
Pages
1216 - 1220
Database
ISI
SICI code
0897-4756(1993)5:9<1216:FOOCBM>2.0.ZU;2-B
Abstract
A low-viscosity borazine oligomer has been prepared which readily wets carbon fiber layups and converts in very high yield to a stable boron nitride (BN) matrix when heated at 1200-degrees-C. Composites could b e prepared after only one or two impregnations which displayed excelle nt oxidation resistance up to 850-degrees-C. In most cases, the compos ites showed outstanding mechanical properties after heating at 1200-15 00-degrees-C with flexural strength and modulus values as high as 130 ksi and 15 Msi, respectively.