Vaporization features of oxide systems studied by high-temperature mass spectrometry

Vaporization processes of the binary phosphate, borate, silicate and zirconate systems, obtained by the Knudsen effusion mass spectrometric method are summarized according to the position of oxide-modifiers in the periodic table of the atoms. The polymerization and association processes as a result of vaporization of borate and phosphate systems are predominant. The association and the dissociation of the oxide components during vaporization are the characteristic of silicate systems. In the zirconate systems studied mainly the dissociative vaporization processes of oxides at high temperatures were mentioned. The main factors for the prediction of the relative volatility of the binary systems are considered.