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단일벽 탄소 나노튜브(SWNT) 강화 구리 복합체의 제조 및 기계적 특성에 관한 연구
성병호(Byung-ho Sung),오세영(Seyoung Oh),최지훈(Jee-hoon Choi),심언태(Untae Sim),김범준(Bumjoon Kim),백승현(Seunghyun Baik),임병수(Byengsoo Lim),김철주(Chul-ju Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Carbon nanotubes were coated by nickel to increase interfacial bonding on copper matrix materials. Mixing processes of ultrasonicating single-walled carbon nanotubes and copper powders were carried out in ethanol to obtain the uniform composition of specimens. The nanocomposite materials were fabricated by sintering processes, which consists of mixing carbon nanotubes with matrix powders followed by hot-pressing. The mechanical properties of single walled carbon nanotube reinforced copper matrix nanocomposite materials have been investigated by SP-creep test and wear test. The displacement rate of nickel-coated nanotube-copper composite was found to increase at 200℃ when compared with pure copper or other nanocomposite materials. The incorporation of carbon nanotubes and nickel-coated carbon nanotubes in the copper matrix composites decreased friction coefficients and increased times up to the onset point of scuffing, compared with those of pure copper specimens.