V. Chandramohan and M. Nandha kumar (2019) “Efficiency of low friction (TI-GE-CN) nano composite thin film coating for piston ring ”, International journal of intellectual advancements and research in engineering computations, 7(2), pp. 2836–2841. doi: 10.61096/ijiarec.v7.iss2.2019.2836-2841.