Surface property modification of ceramics by ion beams

Journal Article · Sun Nov 30 23:00:00 EST 1986 · J. Mater. Energy Syst.; (United States)

DOI:https://doi.org/10.1007/BF02833588· OSTI ID:6775173

McHargue, C J; Farlow, G C; White, C W; Appleton, B R; Williams, J M; Sklad, P S; Angelini, P; Yust, C S

The surface mechanical and chemical properties of ion implanted ceramics reflect changes in the microstructure produced by the bombarding ions. Metastable solid solutions which contain large concentrations of lattice defects have been produced in Al/sub 2/O/sub 3/, SiC, and TiB/sub 2/. Such structures exhibit a higher micro-indentation hardness, fracture toughness, and wear resistance than unimplanted materials. Amorphous surfaces have been formed on Al/sub 2/O/sub 3/ and SiC crystals by low temperature, high fluence, or certain ion species implantation. These surfaces have a lower hardness but higher toughness than unimplanted crystals.

• Research Organization: Oak Ridge National Lab., Oak Ridge, TN 37831
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6775173
• Journal Information: J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 8:3; ISSN JMSMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMORPHOUS STATE
BEAM INJECTION
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHALCOGENIDES
CHEMICAL PROPERTIES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISPERSIONS
ENERGY LEVELS
EXCITED STATES
FRACTURE PROPERTIES
HARDNESS
ION BEAM INJECTION
ION IMPLANTATION
MECHANICAL PROPERTIES
METASTABLE STATES
MICROHARDNESS
MICROSTRUCTURE
MIXTURES
OXIDES
OXYGEN COMPOUNDS
SILICON CARBIDES
SILICON COMPOUNDS
SOLID SOLUTIONS
SOLUTIONS
SURFACE PROPERTIES
SURFACE TREATMENTS
TEMPERATURE EFFECTS
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WEAR RESISTANCE