碳素材料的物理—化学性质,决定了它的使用性能和应用范围。它的特点有如下几方面:1)有良好的耐高温性能。它的机械强度随着温度的升高而提高,在2500℃,机械强度比室温下几乎提高一倍; The physical - chemical properties of carbon material, determines its performance and application range. Its characteristics are the following aspects: 1) have a good high temperature performance. Its mechanical strength increases with increasing temperature, at 2500 ℃, the mechanical strength almost doubled at room temperature;