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一、前言 碳化硅陶瓷材料具有耐高温、抗冲刷、耐腐蚀,抗热震、耐磨、重量轻及良好的热传导性能,它的硬度为碳化钨的两倍,而比重仅为碳化钨的五分之一,而且强度在1400℃之内保持不下降,它比氧化铝热膨胀系数小一半,热传导在498.89℃(930°F)比氧化铝高一个数量级,而抗热震能力近二十倍,这是其它材料所不能比拟的。
First, the preface Silicon carbide ceramic materials with high temperature, erosion resistance, corrosion resistance, thermal shock resistance, abrasion resistance, light weight and good thermal conductivity, its hardness is twice as much as tungsten carbide, while the proportion of tungsten carbide only five Which is less than half the thermal expansion coefficient of alumina. The thermal conductivity is one order of magnitude higher than that of alumina at 498.89 ° C (930 ° F) and nearly twenty times the thermal shock resistance, This is incomparable with other materials.