Properties and performance of a ceramic composite component

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5398749

Dunyak, T J

Eight test specimens were fabricated using an injection-molding process with a borosilicate-glass matrix reinforced with chopped-graphite fibers. These specimens were then tested under quasi-static and cyclic loading at room temperature. Due to the infancy of CMC materials and, especially, CMC components, the program included a very broad-based investigation into many areas considered well-established for more conventional materials, and a very extensive and diverse set of achievements were realized. A tubular CMC test specimen representing an engineering component was designed and fabricated. A high-temperature multiaxial test facility for ceramic-matrix composite components was developed an installed. Nondestructive and destructive test methods for CMC components were developed, and a thorough investigation of the failure mechanisms in injection-molded CMC tubes subjected to room-temperature, quasi-static and cyclic loading was conducted in spite of a very limited quantity of material. Performance-limiting defects in the injection-molded tubes were identified, and a generalized modeling approach was investigated for the analysis of complex, composite components.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)
• OSTI ID: 5398749
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
BOROSILICATE GLASS
CARBON
CARBON FIBERS
COMPOSITE MATERIALS
ELEMENTAL MINERALS
ELEMENTS
FABRICATION
FAILURES
FIBERS
GLASS
GRAPHITE
MATERIALS
MATERIALS TESTING
MINERALS
MOLDING
NONMETALS
PERFORMANCE
REINFORCED MATERIALS
TEST FACILITIES
TESTING
TUBES