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炭/炭刹车副表面硬度对摩擦磨损性能的影响
引用本文:于澍,张红波,熊翔,黄伯云,张传福,曾维亚.炭/炭刹车副表面硬度对摩擦磨损性能的影响[J].功能材料,2006,37(9):1459-1462.
作者姓名:于澍  张红波  熊翔  黄伯云  张传福  曾维亚
作者单位:1. 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083
2. 邵阳市第三中学,湖南,邵阳,422000
基金项目:国家重点基础研究发展计划(973计划)
摘    要:对等温CVD沉积所得两种不同结构的炭/炭复合材料,不同表面硬度下的摩擦磨损性能进行了研究.其中A材料是光滑层结构,B材料是粗糙层和光滑层的混合结构.摩擦试验在实验室规模的MM-1000摩擦试验机上进行.试验表明:随着热处理温度的提高,不同材料的表面硬度均在下降;但在经历相同热处理温度后,B材料的表面硬度比A材料的低;表面硬度较低的B材料塑性较强,摩擦面上的磨屑易于形成致密、连续的摩擦膜,有利于保持稳定而较高的摩擦系数.

关 键 词:炭/炭复合材料  表面硬度  摩擦性能
文章编号:1001-9731(2006)09-1459-04
收稿时间:2005-12-26
修稿时间:2006-06-12

The study of tribological properties of carbon/carbon composites with different surface hardness
YU Shu,ZHANG Hong-bo,XIONG Xiang,HUANG Bai-yun,ZHANG Chuan-fu,ZENG Wei-ya.The study of tribological properties of carbon/carbon composites with different surface hardness[J].Journal of Functional Materials,2006,37(9):1459-1462.
Authors:YU Shu  ZHANG Hong-bo  XIONG Xiang  HUANG Bai-yun  ZHANG Chuan-fu  ZENG Wei-ya
Affiliation:1. National Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China; 2. The Third of Middle School for Shaoyang City, Shaoyang 422000, China
Abstract:This paper describes the tribological properties of carbon/cabon composites with different surface hardness. Optical microscopy and scanning electron microscopy techniques are used to characterize the microstructure, the worn surface and the wear debris. The friction and wear properties of the composites are tested using a laboratory dynamometer. Results indicate that the surface hardness of material decrease with increase of the heat treatment temperature, while the surface hardness of sample B is lower than that of sample A under the same heat treatment temperature, so the wear debris of sample B plasticity distortion is easy that lead to the friction coefficient can keep high and stable for a thin and uniform film on the friction surface.
Keywords:carbon/carbon composites  surface hardness  tribological properties
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