The mechanical properties of ion implanted ceramics
The surface mechanical properties of ceramics are altered by ion implantation. The alteration results from the microstructural changes and the residual stresses produced in the implanted zone. Because of difficulties associated with accurate property determination of thin layers, data published to date are generally qualitative in nature and indicate only the direction of the changes. Implantation conditions which give a damaged but crystalline layer cause increase in hardness, fracture toughness, and flexural strength. The mechanisms responsible appear to involve both defect- and solid-solution strengthening, and the residual compressive stress. Topics covered in this paper are: Fracture toughness, tribological properties, transverse rupture strength, hardness, elastic modulus and residual stresses of ceramics.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6114887
- Report Number(s):
- CONF-8808108-6; ON: DE89008928
- Country of Publication:
- United States
- Language:
- English
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ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMORPHOUS STATE
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHALCOGENIDES
CHARGED PARTICLES
COMPRESSIBILITY
CRACKS
CRYSTAL STRUCTURE
DUCTILITY
FRACTURE PROPERTIES
HARDNESS
ION IMPLANTATION
IONS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MECHANICAL PROPERTIES
MICROSTRUCTURE
NICKEL IONS
OXIDES
OXYGEN COMPOUNDS
SILICON CARBIDES
SILICON COMPOUNDS
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES