Superlubricant behaviour of HF-CVD grown nanocrystalline diamond film
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-04-01 |
| Journal | Surface Engineering |
| Authors | Vikash Kumar, Rishi Sharma, Manish Roy |
| Institutions | Birla Institute of Technology, Mesra, Defence Metallurgical Research Laboratory |
| Citations | 2 |
Abstract
Section titled āAbstractāThis work reports the superlubricant behavior exhibited by nano-crystalline diamond (NCD) films grown on the titanium alloy substrates using 1.25 percent methane with argon gas, using the hot-filament CVD (HFCVD) technique. NCD films were deposited at the substrate temperatures of 650Ā°C, 700Ā°C and 750Ā°C. Using Raman spectroscopy, X-Ray Diffraction (XRD), and Field Emission Scanning Electron Microscopy (FESEM), the structural properties and surface morphology of the deposited films were examined. A multi-functional tribometer was used to study the tribological properties of the NCD films, the minimum and maximum friction coefficient and wear rate (k) obtained were 0.002-0.057 and 3.73 Ć 10 ā17- 1.19 Ć 10 ā14 m 3 /N-m, respectively. NCD films demonstrate potential as solid-state superlubricant coatings, offering solutions to various challenges in the aerospace and automotive industries.