Wear of zirconia-toughened alumina and whisker-reinforced zirconia-toughened alumina
Journal Article
·
· Tribology Transactions; (United States)
- Oak Ridge National Lab., TN (United States)
An investigation of the wear of zirconia-toughened alumina (ZTA) and whisker-reinforced ZTA (WRZTA) sliding unlubricated in air at temperatures of 293 K, 673 K, and 1,073 K is reported. The ZTA specimens exhibited mild wear during 4 km ([approximately]5 [times] 10[sup 4] cycles) of sliding at all three temperatures. At 293 K and 1,073 K the WRZTA also experiences mild wear, but at 673 K this composite begins to wear severely at less than 1 km ([approximately]1.5 [times] 10[sup 4] cycles) of sliding. The sliding friction coefficient for both materials varies with test temperature, and attains its greatest value, 0.8-0.9, at 673 K. Both the friction level and the microstructural form of the zirconia component influence the transition from mild to severe wear.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6906567
- Journal Information:
- Tribology Transactions; (United States), Journal Name: Tribology Transactions; (United States) Vol. 33:4; ISSN 1040-2004; ISSN TRTRE4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360603 -- Materials-- Properties
AIR
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
CRYSTALS
DATA
EXPERIMENTAL DATA
FLUIDS
FRICTION
GASES
INFORMATION
MATERIALS
MICROSTRUCTURE
MONOCRYSTALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
SLIDING FRICTION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
TRANSITION ELEMENT COMPOUNDS
WEAR
WHISKERS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360603 -- Materials-- Properties
AIR
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
CRYSTALS
DATA
EXPERIMENTAL DATA
FLUIDS
FRICTION
GASES
INFORMATION
MATERIALS
MICROSTRUCTURE
MONOCRYSTALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
SLIDING FRICTION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
TRANSITION ELEMENT COMPOUNDS
WEAR
WHISKERS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES