Effects of ion implantation on the mechanical properties of ceramics

Conference · Wed Dec 31 23:00:00 EST 1986 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:6926926

McHargue, C J

The mechanical properties of ceramics are most sensitive to surface conditions than is the case for most other classes of structural materials. Most failures of high-quality ceramic components under applied loads originate at the surface. A failure generally is initiated by a tensile component of the applied stress or by the propagation of a preexisting flaw, or a combination of these factors. As a consequence, the useful strengths of such materials can often be raised by surface treatments, which remove the flaws or reduced their severity, or which generate a compressive stress layer at the surface. Recently there have been a number of studies of the effects of ion implantation on the surface mechanical properties of ceramics. Although much of the data is only qualitative because of the difficulties of accurate determination of the properties of thin layers, it is clear that significant changes in hardness, apparent fracture toughness, rupture strength, and tribological properties may be caused by ion implantation.

• Research Organization: Oak Ridge National Lab., TN (USA)
• OSTI ID: 6926926
• Report Number(s): CONF-8711195-
• Journal Information: Trans. Am. Nucl. Soc.; (United States), Journal Name: Trans. Am. Nucl. Soc.; (United States) Vol. 55; ISSN TANSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
AMORPHOUS STATE
CERAMICS
CHEMICAL BONDS
CRYSTAL STRUCTURE
CRYSTALS
HARDNESS
ION IMPLANTATION
MECHANICAL PROPERTIES
MICROSTRUCTURE
STRESSES
SURFACE PROPERTIES