Nagoya University · 재료과학
우용 이 교수의 연구실은 다이아몬드와 유사한 물리적 특성을 지닌 탄소 기반 보호 코atings인 테트라헤드럴 암오퍼스 탄소(та-C) 및 DLC 코atings의 마찰· Wear 거동을 중심으로 연구를 진행하고 있습니다. 고온 환경에서의 내구성, 습도 및 기체 조건에 따른 마찰 특성 변화, 그리고 기질 편향 조건에 따른 코atings의 미세구조와 마찰 특성 간의 상관관계를 체계적으로 분석하고 있습니다. 특히, 고성능 산업 부품, 자동차 부품, 고온 환경에서의 내구성 코atings 개발에 기여할 수 있는 기초 과학적 이해를 추구하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The anti-friction of diamond-like carbon (DLC) is achieved by a well-developed carbonaceous transfer layer, and Ti-doped DLC is developed into a robustly built-up carbonaceous transfer layer. The friction performance of DLC depends on the operating environment, e.g., ambient gas, humidity, temperature, lubricants, and mating material. In this study, we aimed to reveal the environmental sensitivities of Ti-DLC on friction characteristics. To this end, a Ti-DLC was rubbed against a steel ball, and
In this paper, the tribological behaviors of 1 μm of tetrahedral amorphous carbon (ta-C) coatings deposited with a different substrate bias of -0 V, -100 V and -300 V are examined under elevated temperature up to 600°C. It is found that wear behavior could be divided into two distinct regions according to testing temperature. The variation trend of the specific wear rate of ta-C coatings in region I at 23, 100 and 200°C are affected by abrasive particles which coincide with sp3 content of ta-C c
Abstract Diamond like-carbon (DLC) coatings is a form of amorphous consisting of sp2-bonded and sp3-bonded phase. Among the DLC series, DLC coatings containing a large percentage of sp3 ratio, referred as tetrahedral amorphous carbon (ta-C) coatings, have attracted significant attention as protective coatings in various fields such as tribological applications and automobile components that demand superior durability, chemical inertness and low friction at high temperature. Particularly, the fil
