[1] Kian Kun Yap*, Lucas Amspacher,Jennifer Vail, Shouyi Yin, Sorin-Cristian Vladescu, Marc Masen. Temperature-dependent mechanical and tribological behaviour of unfilled and graphite-filled polyimides. Surface Topography: Metrology and Properties, 2026, 14(2): 025009. (Invited)

[2] Qingduo Meng, Mingchao Shao, Haishan Su, Kian Kun Yap, Yuxiao Ding, Qihua Wang, Tingmei Wang, Hua Yuan*, Fuzhi Song*, Chao Wang*. Influence of humidity on the tribological properties of PTFE/Al₂O₃ and PTFE/SiO₂ composites: An interpretation based on the tribocatalysis mechanism. Tribology International, 2026, 219: 111820.

[3] Jameson Spora*, Kian Kun Yap*, Yasunori Shimizu, Chiharu Tadokoro, Sorin-Cristian Vladescu. Tribological challenges in hydrogen: Solutions for the future energy transition. International Journal of Hydrogen Energy, 2026, 203: 153096.

[4] Kian Kun Yap*, Sergey Shevchik, Lucas Amspacher, Chao Wang, Weixuan Lv, Marc Masen. Measurement uncertainty in optical surface profiling of discontinuous polymer transfer films. Tribology International, 2025, 217: 111611.

[5] Kian Kun Yap*, Kanao Fukuda, Lucas Amspacher, Renato Pero, Nicholas Randall, Marc Masen. Humidity-induced tribofilms of unfilled PTFE. Wear, 2025, 584-585: 206424.

[6] Kian Kun Yap*, Sorin-Cristian Vladescu, Marc Masen. In-situ high-bandwidth microscopy for investigating the roles of adsorbed water and tribofilms on PTFE friction and wear reduction. Tribology International, 2025, 213: 111049.

[7] Weixuan Lv, Tingmei Wang, Qihua Wang, Kian Kun Yap, Fuzhi Song, Chao Wang*. Tribological and mechanochemical properties of nanoparticle-filled polytetrafluoroethylene composites under different loads. Polymers, 2024, 16(7), 894.

[8] Kian Kun Yap*, Marc Masen. In-situ tribometry for understanding the near ultralow wear of neat PTFE. Tribology & Lubrication Technology, 2023, 79(3): 34-44. (Invited)

[9] Kian Kun Yap*, Kanao Fukuda, Jennifer Vail, Janet Wong, Marc Masen. Spatiotemporal mapping for in-situ and real-time tribological analysis in polymer-metal contacts. Tribology International, 2022, 171: 107533.

[10] Kian Kun Yap*, Manoj Murali, Zhengchu Tan, Xue Zhou, Luli Li, Marc Masen. Wax-oil lubricants to reduce the shear between skin and PPE. Scientific Reports, 2021, 11(1): 11537.