采用医用炭/炭复合材料并通过梯度化学气相沉积法(CVD)在其表面制备热解炭涂层,研究分析了涂层的显微结构、摩擦系数、磨损情况.结果发现,该热解炭涂层表面被直径约20 μm热解炭球致密覆盖,在断口处呈现紧密、多层的热解炭.与用沥青浸渍/炭化法制备的炭/炭复合材料相比,在干摩擦时,热解炭涂层样品的摩擦系数更大；在模拟人体关节的湿摩擦时,它的摩擦系数低；在干摩擦和湿摩擦的情况下,它的磨损要小很多.这些结果表明利用梯度的化学气相沉积法(CVD)制备医用炭/炭复合材料的涂层可以提高其表面的耐磨性.
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