Tribological properties of 3D needled C/SiC brake materials

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

3D needled C/SiC brake materials were prepared by a combination of chemical vapor infiltration (CVI) and reactive melt infiltration (RMI). The tribological properties of the as-manufactured C/SiC composites were systematically studied by MM-1000 tribological tester. The microstructure characteristics of the friction surface and wear debris were observed by optical microscope and SEM, respectively. The results indicate that at the same braking speed the dry friction coefficient falls down with the increase of braking pressure; and at the same braking pressure the dry friction coefficient firstly increases and then decreases with the increase of braking speed. The dry friction coefficient falls down obviously as the initial braking temperature rising. The wet friction coefficient fades down a little (about 8% of the dry friction coefficient) and recovers quickly. The static friction coefficient is about 0.56~0.61. The wear rate arises with the increase of braking speed at the same braking pressure. When the braking speed is more than 20 m/s, the wear rate increases obviously with the increase of braking pressure.

源语言英语
页(从-至)50-57
页数8
期刊Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
27
2
出版状态已出版 - 4月 2010

指纹

探究 'Tribological properties of 3D needled C/SiC brake materials' 的科研主题。它们共同构成独一无二的指纹。

引用此