The thermodynamic investigation of graphite over a range of temperatures up to 6000 deg K and pressures up to one thousand atmospheres. Two sets o ewuilibrium composition equations are used--one representing a pure gas phase, the other a heterogeneous system of gas and solid carbon. The results of the computational program are presented in both tabular and graphic form. This study was originally published in September 1962 and revised in December 1965 and June 1967. The purpose of the present revision is to make use of recently determined thermodynamic data for large gaseous polymers of carbon in order to establish a sublimation curve in a carbon phase diagram that passes through an experimentally determined triple point.
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