Abstract
Hot filament chemical vapour deposition (HF CVD) process with low filament temperature (∼ 1650 °C) was utilized for the diamond coating of TiC samples. Porous substrates were fabricated by pulse discharge sintering (PDS) to create more nucleation sites. Nucleation density and morphology of deposited diamond films were studied using scanning electron microscopy (SEM). It was found that the highest growth rate occurs at substrate temperature of 980 °C. Evaluation of the residual stress in deposited films was carried out by Raman spectroscopy. Ball on disk tests were performed with steel as a counterface material. After polishing diamond films demonstrated good sliding performance: friction coefficient of 0.08 and wear rate of 10- 17 m3/N m.
Original language | English |
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Pages (from-to) | 609-615 |
Number of pages | 7 |
Journal | Diamond and Related Materials |
Volume | 16 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2007 Mar |
Keywords
- Diamond film
- Porous TiC substrate
- Pulse discharge sintering
- Wear and friction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Chemistry(all)
- Mechanical Engineering
- Materials Chemistry
- Electrical and Electronic Engineering