Аннотация
The wear of zirconia-based ceramics and WC-based ceramic-metal composites in high-speed dry sliding over steel is examined. The pin-on-disk technique is used up to a sliding speed of 47 m/sec. It is shown that tribolayers with complex composition form over ceramic and metal-ceramic materials and cause nonmonotonic changes in wear and friction. At the first stage, wear changes from normal to extreme high-intensity one with increasing sliding speed. At the second stage, steady-state wear is observed for the metal-ceramic composite and the wear rate of the ceramic material decreases virtually to its initial level typical of low sliding speeds (0.1 m/sec). Practically wearless friction of ceramics is observed over this range of speeds.
Язык оригинала | Английский |
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Страницы (с-по) | 27-33 |
Число страниц | 7 |
Журнал | Powder Metallurgy and Metal Ceramics |
Том | 48 |
Номер выпуска | 1-2 |
DOI | |
Состояние | Опубликовано - янв 2009 |
ASJC Scopus subject areas
- Materials Chemistry
- Metals and Alloys
- Mechanics of Materials
- Condensed Matter Physics
- Ceramics and Composites