Axial and radial coefficients of thermal expansion of carbon fibers in the 20-430 C temperature range as derived from the thermal expansion of 1-D-C-SiO2(B2O3) composites

Conference · Sun Oct 01 00:00:00 EDT 1989 · Ceramic Engineering and Science Proceedings; (USA)

OSTI ID:6976060

Menessier, E; Dumont, J P; Geutte, A; Pailler, R; Rabardel, L

The axial and radial coefficients of thermal expansion (CTE) of HS (T300), HM (M40), and UHM (P100) carbon fibers have been computed, within the 20-430 C temperature range, from thermal expansion measurements performed on unidirectional composites with the fibers embedded in an isotropic glass SiO2-15 mol pct B2O3 matrix. The various CTE of the carbon fibers were found to be strongly anisotropic. At room temperature all of them are negative along the fiber axis and positive along a radial direction. Their thermal variations can be described with polynomial relations of the second order. The CTE values have been tentatively correlated with the microstructural features of the fibers. 17 refs.

• OSTI ID: 6976060
• Report Number(s): CONF-890130-; CODEN: CESPD
• Journal Information: Ceramic Engineering and Science Proceedings; (USA), Vol. 10; Conference: 13. annual conference on composites and advanced ceramics, Cocoa Beach, FL (USA), 15-18 Jan 1989; ISSN 0196-6219
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBON FIBERS
THERMAL EXPANSION
BOROSILICATE GLASS
HIGH TEMPERATURE
MICROSTRUCTURE
THERMOMECHANICAL TREATMENTS
VARIATIONS
CRYSTAL STRUCTURE
EXPANSION
FABRICATION
FIBERS
GLASS
HEAT TREATMENTS
MATERIALS WORKING
360603* - Materials- Properties