一、前言碳素材料具有很多优良的性能,如耐高温、热膨胀系数低、体积稳定、有良好的耐腐蚀性能、具有独特的自润滑性能等等。这些优良的性能,使碳素材料被广泛地利用于化工、冶金、机械、电气等工业部门。碳素材料和金属材料相比,虽然呈现出许多金属材料望尘莫及的独特性能,但是也有很多致命的弱点,例如:机械强度低、耐磨性差及易漏液、漏气,这就大大限制了碳素材料应用范围。 First, the preface Carbon material has many excellent properties, such as high temperature, low thermal expansion coefficient, volume stability, good corrosion resistance, with a unique self-lubricating properties and so on. These excellent properties make carbon materials widely used in the chemical, metallurgical, mechanical, electrical and other industrial sectors. Compared with metallic materials, carbon materials have many unique and unattainable properties, but also have many fatal weaknesses, such as low mechanical strength, poor wear resistance, and easy leakage and leakage, which greatly limits the carbon Application of the material.