http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
니켈 코팅된 탄소나노튜브를 이용한 구리 복합체의 제조 및 특성에 관한 연구
오세영(Seyoung Oh),임병수(Byengsoo Lim),김철주(Chul-ju Kim),김범준(Bumjoon Kim),성병호(Byung-ho Sung),백승현(Seunghyun Baik) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Carbon nanotubes (CNTs) have excellent properties for improving mechanical, thermal, and electrical characteristics of nanocomposites as reinforcement materials. To develop successful CNT-reinforced nanocomposites, it is important to transfer the extraordinary properties of CNTs to the matrix. Two main issues are homogeneous distribution and high interfacial strength. We have studied CNT reinforced copper matrix nanocomposites. In this study, CNT was dispersed by the mechanical mixing process and interfacial strength between the CNTs and the copper matrix was controlled by coating the nanotubes with nickel or copper. The sintering process was adapted for the fabrication of nanocomposites specimens. The displacement characteristics of nanocomposites at an elevated temperature were investigated by a small punch (SP) creep tester to evaluate the interfacial strength between copper particles and CNTs. The electrical and thermal characteristics of the nanocomposites were also investigated.
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.