High temperature mass spectrometric studies over Zr-Al binary system: Thermodynamic properties over and biphasic regions.

Vaporisation thermodynamic studies were performed over  and  biphasic region of Al-Zr system by employing Knudsen Effusion Mass Spectrometry (KEMS) in the temperature range between 1,233 to 1,535 and 1,208 to 1,458 K, respectively. It was observed that these samples undergo incongruent vaporisation with Al(g) alone in the vapour phase. Following are the recommended p-T relations deduced in the present study: log (p/Pa) = (-18,663 ± 132)/T + (12.