The oxidation behaviour of Mo-W doped carbon-based coating (Mo-W-C) is investigated in elevated temperature (400-1000 degrees C). Strong metallurgical bond between Mo-W-C coating and substrate prevents any sort of delamination during heat-treatment. Isothermal oxidation tests show initial growth of metal oxides at 500 degrees C, however graphitic nature of the as-deposited coating is preserved. The oxidation progresses with further rise in temperature and the substrate is eventually exposed at 700 degrees C. The performance of Mo-W-C coating is compared with a state-of-the-art DLC(Cr/Cr-WC/W:C-H/a:C-H) coating, which shows preliminary oxidation at 400 degrees C and local delamination of the coating at 500 degrees C leading to substrate exposure. The graphitisation starts at 400 degrees C and the diamond-like structure is completely converted into the graphite-like structure at 500 degrees C. Dynamic oxidation behaviour of both the coatings is investigated using Thermo-gravimetric analysis carried out with a slow heating rate of 1 degrees C/min from ambient temperature to 1000 degrees C. Mo-W-C coating resists oxidation up to similar to 800 degrees C whereas delamination of DLC( Cr/Cr-WC/W:C-H/a:C-H) coating is observed beyond similar to 380 degrees C. In summary, Mo-W-C coating provides improved oxidation resistance at elevated temperature compared to DLC(Cr/Cr-WC/W:C-H/a:C-H) coating. (C) 2015 Elsevier B.V. All rights reserved.