@article{CTT100936839, author = {Lulu Li and Takayuki Tokoroyama and Ruixi Zhang and Wenjun Wu and Xue Fan and Nan Jian and Dongfeng Diao and Noritsugu Umehara}, title = {Role of bonding structure in the corrosion resistance and tribological properties of Tantalum-containing carbon coating: An analysis employing various deposition bias voltages}, journal = {Tribology International}, year = 2026, } @article{CTT100936838, author = {Ryota Takasaka and Noritsugu Umehara and Takayuki Tokoroyama and Ruixi Zhang and Koichi Okamura and Junichi Fukuda and Tetsuya Hayashi and Kohei Abe and Satoshi Wakamatsu}, title = {Abnormal Wear due to Synergistic Effects of Corrosion and Cavitation in High-Speed Flow of Glycol-Based Hydraulic Fluid Valve Surfaces}, journal = {Tribology Online}, year = 2025, } @article{CTT100936840, author = {Ruixi Zhang and Dmitry Levshov and Keigo Otsuka and Ya Feng and Yongjia Zheng and Esko I. Kauppinen and Shohei Chiashi and Wim Wenseleers and Sofie Cambré and Rong Xiang and Shigeo Maruyama}, title = {Efficient Growth of 1D Van der Waals Heterostructures on Zeolite-Supported SWCNTs}, journal = {Small}, year = 2025, } @article{CTT100936841, author = {Wenjun Wu and Motoyuki Murashima and Noritsugu Umehara and Takayuki Tokoroyama and Ruixi Zhang}, title = {Low friction of nitrogen-doped diamond-like carbon coating due to acidic liquid film and nitrogen-doped graphite oxide generated by dielectric barrier discharge in ambient air}, journal = {Surfaces and Interfaces}, year = 2025, } @article{CTT100936842, author = {Naoya Hashizume and Riki Takano and Noritsugu Umehara and Takayuki Tokoroyama and Ruixi Zhang and Kiyoshi Hanyuda and Ayano Otsuka and Mao Ueda}, title = {Development of precipitation lubrication with palmitic acid and its friction mechanism}, journal = {Tribology International}, year = 2024, } @article{CTT100936843, author = {Lulu Li and Takayuki Tokoroyama and Ruixi Zhang and Noritsugu Umehara}, title = {Corrosion and tribological properties of ta-C/ta-C: Ta coatings: Analysis ofthe influence of Ta-O/Ta-C ratio}, journal = {Tribology International}, year = 2024, } @article{CTT100936948, author = {Takayuki Tokoroyama and Masahiro Okashita and Ruixi Zhang and Motoyuki Murashima and Ryo Tsuboi and Takuji Yoshida and Hiroshi Shiomi and Noritsugu Umehara}, title = {The mechanism of small wear particles entrainment in friction under boundary lubrication}, journal = {}, year = 2024, } @article{CTT100936945, author = {Ruixi Zhang and Woo-Young Lee and Noritsugu Umehara and Takayuki Tokoroyama and Motoyuki Murashima and Yuji Takimoto}, title = {The development of B/Cr co-doped DLC coating by FCVA deposition system and its tribological properties at 300℃}, journal = {Surface & Coatings Technology}, year = 2024, } @article{CTT100936946, author = {Naoya Hashizume and Yusei Yamamoto and Cheng Chen and Takayuki Tokoroyama and Ruixi Zhang and Dongfeng Diao and Noritsugu Umehara}, title = {The Effect of Carbon Structure of DLC Coatings on Friction Characteristics of MoDTC-Derived Tribofilm by Using an In Situ Reflectance Spectroscopy}, journal = {Tribology Letters}, year = 2024, } @article{CTT100936947, author = {Naoya Hashizume and Takayuki Tokoroyama and Noritsugu Umehara and Motoyuki Murashima and Woo-Young Lee and Ruixi Zhang and Masahiro Kunisu and Hirotaka Shioji and Kazumasa Oharada}, title = {In situ Observation of the Formation of MoDTC-Derived Tribofilm on a Bearing Steel with Different Surface Roughness by Using a Reflectance Spectroscopy and Its Effects on Friction}, journal = {}, year = 2024, } @article{CTT100936949, author = {Ruixi Zhang and Ya Feng and Henan Li and Akihito Kumamoto and Shuhui Wang and Yongjia Zheng and Wanyu Dai and Nan Fang and Ming Liu and Takeshi Tanaka and Yuichiro K. Kato and Hiromichi Kataura and Yuichi Ikuhara and Shigeo Maruyama and Rong Xiang}, title = {Fabricating one-dimensional van der Waals heterostructures on chirality-sorted single-walled carbon nanotubes}, journal = {Carbon}, year = 2022, } @inproceedings{CTT100936831, author = {Ruixi Zhang and Daiki Yokota and Takumi Ishikawa and Hiroshige Matsuoka and Yuki Hirata}, title = {Multilayer Chromium/DLC Coatings: Synthesis and Tribological Properties}, booktitle = {}, year = 2025, } @inproceedings{CTT100936833, author = {Takahito Imanishi and Ruixi Zhang and Nobuharu Kajiyama and Yuki Hirata}, title = {Characterization and Future Prospects of 2D Materials Grown by the SAHP Method}, booktitle = {}, year = 2025, } @inproceedings{CTT100936834, author = {Shota Zenke and Ruixi Zhang and Kenta Yamamoto and Makoto Kano and Yuki Hirata}, title = {Enhancement of Friction and Wear Performance by DLC Films Deposited on Surfaces with Anisotropic Roughness under Biodegradable Oil Lubrication}, booktitle = {}, year = 2025, } @inproceedings{CTT100936951, author = {Ruixi Zhang and Haodong Feng and Noritsugu Umehara and Takayuki Tokoroyama}, title = {Clarification of the corrosion and frictional behavior of nitrogen-doped ta-C coating in nitride acid solution}, booktitle = {Proceedings of ITS-IFToMM 2024. ITS-IFToMM 2024. Mechanisms and Machine Science}, year = 2024, } @inproceedings{CTT100936952, author = {Kousuke Suzuki and Takayuki Tokoroyama and Riko Takita and Ruixi Zhang and Noritsugu Umehara and Shun Sato and Shin Nishida}, title = {Enhancing Cutting Tool Performance through ta-C:Ta Coating for CFRP Dry Machining: Investigation of Wear Resistance and Cutting Forces}, booktitle = {Proceedings of ITS-IFToMM 2024. ITS-IFToMM 2024. Mechanisms and Machine Science}, year = 2024, } @inproceedings{CTT100936953, author = {Wenjun Wu and Noritsugu Umehara and Takayuki Tokoroyama and Motoyuki Murashima and Ruixi Zhang}, title = {Development of Low-Friction Technology for Treating Nitrogen-Containing Diamond-Like Carbon Coatings in Ambient Air Using Dielectric Barrier Discharge}, booktitle = {roceedings of ITS-IFToMM 2024. ITS-IFToMM 2024. Mechanisms and Machine Science}, year = 2024, } @inproceedings{CTT100936950, author = {Ruixi Zhang and Daiki Yasuda and Noritsugu Umehara and Takayuki Tokoroyama}, title = {Effect of Hydrogen Doping for ta-C on Friction of ta-C:H Sliding Against Bearing Steel in High Temperature and High Vacuum}, booktitle = {Proceedings of ITS-IFToMM 2024. ITS-IFToMM 2024. Mechanisms and Machine Science}, year = 2024, } @misc{CTT100936954, author = {橋詰直弥 and 髙野理貴 and 梅原徳次 and 野老山貴行 and 張 鋭璽}, title = {「低温析出型潤滑」による摩擦損失低減}, year = 2024, }