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- W2004139075 abstract "To determine whether diamond-like carbon (DLC) films could be applied as a kind of solid lubricant coating at high temperatures, the friction properties and wear ability of DLC films in sliding against alumina at elevated temperatures up to 400°C were investigated. We used Raman spectroscopy to determine the chemical and structural changes of DLC films, a scratch tester to investigate the variation of the adherence between DLC films and the silicon wafer substrate, and scanning electron microscopy (SEM) to observe the wear tracks at different test temperatures. We confirmed that chemical-vapor-deposited DLC films are good lubricant and wear resistant films within a suitable temperature range. Increasing the temperature decreased the friction coefficient and increased the wear rate of DLC films. These phenomena are due to film graphitization as revealed by Raman spectroscopy. Above the critical temperature of 300°C, films peeled off quickly, i.e. their wear lives are shortened, since the adherence between film and substrates abruptly decreased at high temperatures. Below 200°C, the dominant film wear mechanism is plastic deformation. At 300 and 400°C, the dominant wear mechanisms of DLC films are fracture and delamination." @default.
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- W2004139075 date "1999-06-01" @default.
- W2004139075 modified "2023-09-25" @default.
- W2004139075 title "The tribological characteristics of diamond-like carbon films at elevated temperatures" @default.
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- W2004139075 doi "https://doi.org/10.1016/s0040-6090(98)01093-1" @default.
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