Influence of Fracture Toughness on the Wear Resistance of Yttria‐Doped Zirconium Oxide
- 1 February 1989
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 72 (2) , 252-257
- https://doi.org/10.1111/j.1151-2916.1989.tb06110.x
Abstract
Yttria‐doped zirconium oxide was prepared in the fully tetragonal, mixed tetragonal and cubic, and the fully cubic phases by varying the yttria conent. The fracture toughnesses of the materials were 11.6, 8.7, and 2.5 Mpa · m½, respectively. The wear resistance, measured in air at room temperature in slow sliding (1 mm/s speed and 9.8 N load), increases by a factor of 1200 from the brittle to the toughest material; it is proportional to the fourth power of toughness. Wear occurs predominantly by fracture in the brittle (cubic) material; plastic deformation is observed in the tougher zirconium oxide.Keywords
This publication has 7 references indexed in Scilit:
- Interaction of tribochemistry and microfracture in the friction and wear of silicon nitrideWear, 1985
- Transformation tougheningJournal of Materials Science, 1982
- Hardness, Toughness, and Brittleness: An Indentation AnalysisJournal of the American Ceramic Society, 1979
- Effect of stress-induced phase transformation on the properties of polycrystalline zirconia containing metastable tetragonal phaseJournal of Materials Science, 1978
- The Stress Field Created by a Circular Sliding ContactJournal of Applied Mechanics, 1966
- The wear of metals under unlubricated conditionsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1956
- Contact and Rubbing of Flat SurfacesJournal of Applied Physics, 1953