石墨蒸气压(Vapour pressure ofgraphite) 碳相图表明不同温度和压力条件下,碳的各种存在形态之间的界限及互相转化的简单图解。碳的熔点很高,蒸气组成也很复杂,要直接通过实验绘制完整的碳相图颇为困难。现有的碳相图是根据实验数据和在此基础上的热力学外推法绘制的。 Vapor pressure ofgraphite The carbon phase diagram shows the boundary between the various existing forms of carbon and the simple conversion of each other under different temperature and pressure conditions. The melting point of carbon is very high and the composition of the vapor is also very complicated. It is quite difficult to directly draw the complete carbon phase diagram through experiments. Existing carbon phase diagrams are based on experimental data and thermodynamic extrapolations based on this.