High-temperature mechanical properties of ceramics. Progress report, July 1, 1981-June 30, 1982

Technical Report · Fri Jan 01 00:00:00 EST 1982

OSTI ID:5227709

Raj, R

Several fundamental aspects of high temperature mechanical behavior of ceramics (containing small amounts of a liquid phase) have been studied. Cavitation, microcracking and creep crack growth have been formulated in terms of micro-mechanisms. Creep has been studied in terms of a solution/precipitation transport mechanism. Experiments have been done to measure the kinetics of crystal growth and dissolution from the liquid phase, and these data and the creep model have been used to obtain quantitative agreement with experiment. Two types of materials, lithia-alumino-silicate ..beta..-spodumene glass ceramic and magnesia fluxed hot-pressed silicon nitride were the subjects of experimental work.

• Research Organization: Cornell Univ., Ithaca, NY (USA). Dept. of Materials Science and Engineering
• DOE Contract Number: AS02-77ER04386
• OSTI ID: 5227709
• Report Number(s): DOE/ER/04386-5; COO-4386-5; ON: DE82009110
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
CRACKS
CREEP
FRACTURE PROPERTIES
MICROSTRUCTURE
CRYSTAL STRUCTURE
MECHANICAL PROPERTIES
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties