지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Nanocrystalline diamond(NCD) coated SiC balls were applied in a ball-on-disk tribometer. After seeding in an ultrasonic bath containing nanometer diamond powders, 2.2 μm thick NCD films were deposited on sintered 3 mm diameter SiC balls at 600℃ in a 2.45 GHz microwave plasma CVD system. Bare ZrO₂ and SiC balls were prepared for comparison as test balls. Tribology tests were performed in air with pairs of three different balls and mirror polished steel(SKH51) disk. The wear tracks on balls and disks were examined by optical microscope and alpha step profiler. Under the load of 3 N, the friction coefficients of steel against ZrO₂, SiC and NCD-coated balls were between 0.4 and 0.8. After a few thousands sliding laps, the friction coefficient of NCD-coated balls dropped from 0.45 to below 0.1 and maintained thereafter. Under a higher load of 10 N or 20 N with a long sliding distance of 2 km, ZrO₂ and SiC balls exhibited the similar friction coefficients as above. The friction coefficient of NCD-coated balls was less than 0.1 from the beginning and increased to above 0.1 steadily or with some fluctuations as sliding distance increased. NCD coating layers were found worn out after long duration and/or high load sliding test, which resulted in the friction coefficient higher than 0.1.
목차
Abstract
1. 서론
2. 실험방법
3. 실험결과
4. 검토
5. 결론
References
참고문헌 (12)
참고문헌 신청
1. [학술지(정기간행물)] - D. G. Bhat / 1995 / / Diamond Relat. Mater 4 : 921 ~
2. [학술지(정기간행물)] - S. K. Choi / 1996 / / Thin Solid Films 279 : 110 ~
3. [학술지(정기간행물)] - D. M. Gruen / 1999 / / Annu. Rev. Mater. Sci 29 : 211 ~
4. [학술지(정기간행물)] - J. E. Butler / 2008 / / Chem. Vap. Deposition 14 : 145 ~
5. [학술지(정기간행물)] - A. Erdemir / 1996 / / Diamond Relat. Mater 5 : 923 ~
2. [학술지(정기간행물)] - S. K. Choi / 1996 / / Thin Solid Films 279 : 110 ~
3. [학술지(정기간행물)] - D. M. Gruen / 1999 / / Annu. Rev. Mater. Sci 29 : 211 ~
4. [학술지(정기간행물)] - J. E. Butler / 2008 / / Chem. Vap. Deposition 14 : 145 ~
5. [학술지(정기간행물)] - A. Erdemir / 1996 / / Diamond Relat. Mater 5 : 923 ~
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UCI(KEPA) : I410-ECN-0101-2015-580-002672266