Structural characterization of high temperature composites. Final Report, 10 Dec. 1982 - 30 Sep. 1985

Technical Report · Tue Oct 01 04:00:00 EDT 1991

OSTI ID:6170001

Mandell, J F; Grande, D H

Glass, ceramic, and carbon matrix composite materials have emerged in recent years with potential properties and temperature resistance which make them attractive for high temperature applications such as gas turbine engines. At the outset of this study, only flexural tests were available to evaluate brittle matrix composites at temperatures in the 600 to 1000 C range. The results are described of an ongoing effort to develop appropriate tensile, compression, and shear test methods for high temperature use. A tensile test for unidirectional composites was developed and used to evaluate the properties and behavior of ceramic fiber reinforced glass and glass-ceramic matrix composites in air at temperatures up to 1000 C. The results indicate generally efficient fiber reinforcement and tolerance to matrix cracking similar to polymer matrix composites. Limiting properties in these materials may be an inherently very low transverse strain to failure, and high temperature embrittlement due to fiber/matrix interface oxidation.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (United States)
• OSTI ID: 6170001
• Report Number(s): N-91-32180; NASA-CR--187220; NAS--1.26:187220; CNN: NSG-377
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
BRITTLENESS
CARBON FIBERS
CERAMICS
CHEMICAL REACTIONS
COMPOSITE MATERIALS
COMPRESSIBILITY
DOCUMENT TYPES
FAILURES
FIBERGLASS
FIBERS
HIGH TEMPERATURE
MATERIALS
MATRIX MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
POLYMERS
PROGRESS REPORT
TENSILE PROPERTIES