Abstract
The C/C composite brake discs were prepared by tri-cylindrical chemical vapor deposition (CVD) process. The optimum processing parameters were as follows: deposition temperature was 830 – 930 °C, the gas-flow rates of N2 and propylene were 4.8 – 5.2 m3/h and 5.8 – 6.2 m3/h, respectively, the furnace pressure was 4.5 – 5.5 kPa and the deposition time was 200 h. The effects of processing parameters on the densified rates, thermal-physical property and mechanical performance of C/C composite brake discs were studied. The results show that density, heat conductivity, bend strength and abrasion ratio of the multi-cylindrica brake discs are 1.02 – 1.78 g/cm3, 31 W/(m · K), 114 MPa and 7 µm/s, respectively, which are approximately similar to those of the single-cyclindrical ones. The gas flow rate has no relation to the number of the cylinder and furnace loading. The utilization ratio of carbon can be improved by multi-cylinder CVD process without changing the characteristics of brake disc.
Similar content being viewed by others
References
Maksimova N I. Catalytic synthesis of carbon nanostructures from polymer precursors [J]. Journal of Molecular Catalysis A: Chemical, 2000, 158(6): 301–307.
Szczygielska A. Radial distribution function analysis of the graphitization process in carbon materials [J]. Journal of Alloys and Compounds, 2001, 328(8): 231–236.
Endo M. Structural characterization of carbon nanfibers obtained by hydrocarbon pyrolysis[J]. Carbon, 2001, 39(5): 2003–2010.
Qult F A. Effects of the substrate on deposit structure and reactivity in the chemical vapor deposition of carbon[J]. Carbon, 1998, 36(11): 1623–1632.
Doege E. A new concept for the description of surface friction phenomena[J]. Journal of Materials Processing Technology, 1999, 94(7): 189–192.
YAN Gui-shen, LI He-jun, ZHANG Shou-yang, et al. Densification mechanism of performs with thermal gradient CVI[J]. Acta Materiale Compositae Sinica, 2003, 20(3): 64–70. (in Chinese)
YI Fa-jun, HAN Jie-cai, DU Shan-yi. Experimental investigation on mechanical properties of hybrid C/C composites at ultra-high temperature[J]. Acta Materiale Compositae Sinica, 2003, 20(2): 118–122. (in Chinese)
JIANG Jian-chun, HUANG Bai-yun. Effect of structure integrality of aircraft braking C/C composites on their friction coefficients[J]. New Carbon Materials, 2003, 18(2): 111–115. (in Chinese)
ZHANG Fu-qin, HUANG Qi-zhong, HUANG Bai-yun, et al. Laser Raman micro-spectroscopy study on microstructure of C/C composites. [J] ACTA Materiae Compositae Sinica, 2003, 20(3): 113–117. (in Chinese)
ZHOU Zhi-qiang, TANG Zhong-hua, XIONG Jie. To use technology of thermal gradient CVD densify to manufacture C/C composites braking discs[J]. New Carbon Materials, 2000, 15(2): 22–27. (in Chinese)
YU Shu, LIU Gen-shan, LI Xi-bin, et al. Contrast and analysis of properties of C/C braking discs from different producers[J]. ACTA Materiae Compositae Sinica, 2003, 20(3): 35–40. (in Chinese)
LI Ye, HUANG Qi-zhong, WANG Lin-shan. Effect of resin impregnation on the mechanical properties of C/C composites[J]. New Carbon Materials, 2003, 18(2): 117–122. (in Chinese)
XIONG Xiang, HUANG Bai-yun, XU Hui-juan, et al. Frictional and wear behaviors of the C/C composite from a needled felt at different braking pressures and speeds[J]. ACTA Materiae Compositae Sinica, 2003, 20(3): 41–46. (in Chinese)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yuan, Yd., Zhang, Fk. & Zhou, Wc. Preparation and characteristics of C/C composite brake disc by multi-cylindrical chemical vapor deposition processes. J Cent. South Univ. Technol. 12, 400–402 (2005). https://doi.org/10.1007/s11771-005-0170-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11771-005-0170-2