不同C/C复合材料飞机刹车盘基本性能的对比分析

通过对比分析Dunlop、 B.F.Goodrich、Missier、Bendix和中南大学粉末冶金研究所制备的几种炭/炭复合材料的显微组织、石墨化度、导热系数、洛氏硬度、抗压、抗弯、层间剪切强度、摩擦磨损性能后,得出如下结论:C/C复合材料作为一种性能优良的制动材料,必须具有合理的炭纤维骨架结构,一定比例的粗糙层气相沉积炭结构,较高的石墨化度和垂直摩擦面方向上的导热系数;我国具有自己知识产权的C/C复合材料飞机刹车盘的研制工作已取得了较大的进展和突破,其各项性能指标与国外同类产品性能相当。

CONTRAST AND ANALYSIS OF PROPERTIES OF CARBON/CARBON BRAKING DISCS FROM DIFFERENT PRODUCERS

This paper studied the microstructure, graphitization degree, heat transfer coefficient, hardness, compression strength, bending strength, interlayer shear strength, friction and wear properties of different specimens from different producers such as Dunlop, B.F.Goodrich, Missier, Bendix and state key laboratory for powder metallurgy of CSU. The results show that as a superior braking material, carbon/carbon composites must have reasonable felt and proportional rough laminar structure, high graphitization degree, high heat transfer coefficient in the vertical direction of the carbon fibers in the composites as well. The results also show that China has got the ability to produce carbon /carbon composites for braking materials compared with the other companies that are very outstanding in this field.