Wear mechanisms of partially stabilized zirconia

Conference · Wed Dec 31 23:00:00 EST 1986

OSTI ID:6370574

Aronov, V

This paper is devoted to an investigation of the wear mechanisms of magnesia and yttria partially-stabilized zirconia in ceramic/ceramic and ceramic/metal sliding-contact tribological systems at high temperature. It was found that the wear of ceramics rubbed against ceramics at room temperature may be attributed to intensive plastic deformation of surfaces resulting in low cycle fatigue. The wear mechanism of ceramics rubbed against metals was by polishing and surface fracture, while that of metals was adhesive transfer of material on to ceramic surfaces. Investigation of the wear behavior of magnesia partially-stabilized zirconia rubbed against itself showed that up to three orders of magnitude increase in wear resistance can be achieved in a particular temperature range, depending on both sliding speed and the ambient temperature. XRD analysis revealed that a thermally-induced phase transformation takes place on the frictional interface.

• Research Organization: Illinois Institute of Technology
• OSTI ID: 6370574
• Report Number(s): CONF-870204-
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALKALINE EARTH METAL COMPOUNDS
AMBIENT TEMPERATURE
CERAMICS
CHALCOGENIDES
COHERENT SCATTERING
COMMINUTION
COMPOSITE MATERIALS
COOLING
DEFECTS
DIFFRACTION
ELEMENTS
EXPANSION
FATIGUE
FRACTURING
FRICTION
INTERFACES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MATERIALS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
METALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POLISHING
SCATTERING
SLIDING FRICTION
STRESSES
SURFACE FINISHING
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
TRIBOLOGY
WEAR
WEAR RESISTANCE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES