Abstract
this paper, a series of ZrO2 matrix high-temperature self-lubricating composites were prepared by hot-press technique. The effect of Mo and Ag on the friction and wear behavior of the ZrO2(Y 2O3)-Ag-CaF2-Mo composites in a wide temperature range was investigated. The XRD results showed that CaMoO 4 formed on the worn surface above 400 °C. The excellent lubrication performance of CaMoO4 endowed the low coefficient of friction of the ZrO2(Y2O3)-Ag-CaF 2-Mo composites at high temperatures. The ZrO2(Y 2O3)-10Ag-10CaF2-10Mo composites showed favorable wear resistance at all the tested temperatures which was attributed to the combined action of hardness and phase transformation.
Original language | English |
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Pages (from-to) | 7-13 |
Number of pages | 7 |
Journal | Tribology International |
Volume | 78 |
DOIs | |
State | Published - Oct 2014 |
Externally published | Yes |
Keywords
- Composites
- High temperatures
- Tribological behaviors