Influence of the medium on the failure of a constructional ceramic (review)
The question of the resistance to corrosion under stress has arisen in the use of an aluminum oxide-base ceramic for the production of bearings, portions of chemical apparatus, and other parts operating in aqueous alkaline and acid media and also in the production from silicon nitride and carbide-base ceramics of parts of motors operating in the air-containing products of combustion of fuel at high temperatures. This review covers questions of the influence of chemically active working media (water, solutions of acids and alkalis, air at high temperatures) on these forms of ceramics. In discussing the corrosion cracking mechanisms certain data obtained in the study of glasses is used for reasons of the similarity between the mechanical behavior of glass and ceramics and of the lack of similar data for ceramics. Methods for tests of specimens both with and without preliminarily applied defects or cracks and for long-term crack resistance tests are assessed. Corrosion cracking behavior for silicon nitride, silicon carbide, and aluminum-oxide base ceramics are discussed in detail.
- Research Organization:
- Kiev Polytechnic Institute (USSR)
- OSTI ID:
- 6182412
- Journal Information:
- Sov. Mater. Sci. (Engl. Transl.); (United States), Journal Name: Sov. Mater. Sci. (Engl. Transl.); (United States) Vol. 23:4; ISSN SOMSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stress-enhanced oxidation of silicon nitride ceramics
Ceramic transactions: Silicon-based structural ceramics. Volume 42
Related Subjects
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
AIR
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
COMPARATIVE EVALUATIONS
CORROSION
CORROSION FATIGUE
CORROSION RESISTANCE
CORROSIVE EFFECTS
CRACK PROPAGATION
DEFECTS
DESTRUCTIVE TESTING
ENGINES
FATIGUE
FLUIDS
FRACTURE MECHANICS
FRACTURE PROPERTIES
GASES
GLASS
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
STRESS CORROSION
TESTING
WATER