YANG SEUNG HO Yoon Eui Sung Kong Hosung KOH SEOK KEUN 2024-01-13T13:00:37Z 2024-01-13T13:00:37Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/106997 English nano-friction hydrophobic ion treatment tribology SPM Micro/nano tribological characteristics of ultrahydrophobic PTFE surface modified by ion beam treatment Conference 1 2nd International Workshop on Microtribology(IWM 2002) : Microtribology for Macro Systems, pp.19 2nd International Workshop on Microtribology(IWM 2002) : Microtribology for Macro Systems 19 19 JA