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서지반출
Fabrication and Inertia Dynamic Friction Properties of Pitch-based Carbon-Carbon Composites
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  • Fabrication and Inertia Dynamic Friction Properties of Pitch-based Carbon-Carbon Composites
  • Fabrication and Inertia Dynamic Friction Properties of Pitch-based Carbon-Carbon Composites
저자명
Lee. Jinyong,Suhr. Dong-Soo,Lim. Yun-Soo,Lee. Seung-Goo,Park. Jong-Kyoo
간행물명
The Korean journal of ceramics
권/호정보
1998년|4권 3호|pp.193-198 (6 pages)
발행정보
한국세라믹학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

This paper presents the effects of an initial braking velocity, a braking pressure, and the number of braking stop on the tribological behaviors for the three different C-C composites using an inertia dynamic-friction tester. The C-C composites were prepared through the processes of several cycles of pitch impregnation/carbonization with different friction surface texture such as continuous 8-harness satin fabric (ADD-1), chopped fiber (ADD-2) and chopped fiber (ADD-3) having higher fiber volume fraction on friction than ADD-2 by about 10%. ADD-1 exhibited a higher fraction coefficient (0.41~0.33) than those of ADD-2 and ADD-3 (0.32~0.26) under the various initial braking velocities and braking pressures. The fraction coefficients decreased with increasing the initial velocity and the braking pressures. Wear rate by the thickness change after every 25 stop indicated that ADD-2 and ADD-3 having 1.7~2.7 $mu extrm{m}$/stop/pair were much lower than that of ADD-1 showing 5.0~6.5 $mu extrm{m}$/stop/pair. All specimens showed a little bit lower wear rate during the middle stage than the initial and latter stages among 100 braking stops. ADD-1 showed higher friction coefficient and wear rate due to the active pull-out of the fibers, evidenced by thicker were film and wear debrises.