3. Wear mechanisms of ceramics
3.1 Factors triggering wear of ceramics
Ceramics are not immune to several mechanisms that initiate the transition to severe wear, such as :
phase transitions (e.g. with ZrO2) ;
intergranular stress due to the elastic and thermophysical anisotropies of the crystal (e.g. with Si3N4, Al2O3) ;
sublimation of oxides (e.g. with WC, WO3) ;
the formation of glassy layers by tribo-oxidation (e.g. with SiO2-B2O3, see § 3.2
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Wear mechanisms of ceramics
Conclusion
Sources bibliographiques
- (1) - RICHARD (C.) - Tribology at high temperature : comparison of the tribological behaviour of ceramic composites against steel at 700 °C in unlubricated and water lubricated conditions. - 21th Int. Conf. on Surface Modification Technologies XXI (SMT21) – Paris. Sci Editors : T. S. Sudarshan and...
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