Article

Thermophysical Properties of Materials
2020. V. 58. № 2. P. 197–212
Polishchuk V.P., Samoilov I.S., Amirov R.Kh., Kirillin A.V., Kiselev V.I.
Graphite melting at “low” temperature
Annotation
The paper presents the results of experimental studies of the arc discharge between the graphite electrodes in an argon atmosphere at a pressure of $0.1$–$100$ kPa. The discharge was ignited after the destruction of a graphite bar heated by a fixed electric current and maintained for $\sim10^3$ s at a temperature of $\sim3$ kK. Evidence of the formation of liquid phase on the surface of the graphite electrodes at a temperature of $\sim3.2$ kK is presented. Data on the saturated carbon vapor pressure are discussed. The pressure in the carbon triple point does not exceed $\sim0.1$ kPa.
Article reference:
Polishchuk V.P., Samoilov I.S., Amirov R.Kh., Kirillin A.V., Kiselev V.I. Graphite melting at “low” temperature, High Temp., 2020. V. 58. № 2. P. 197