Thermodynamic properties and processes of evaporation of melts of oxide systems and materials

The investigation is concerned with oxide systems - glass base, glass-forming and slag melts, film materials, coatings, oxide ceramics. The aim to be attained is to study evaporation processes and thermodynamic properties of melts of multicomponent and binary oxide systems using the method of high-temperature mass-spectrometry, search for approaches for prediction of thermodynamic properties and identification of criteria of relative volatility. The main regularities of the processes of evaporation of silicate, germanate, borate and phosphate melts have been revealed. A possibility of calculating properties of multicomponent melts based on the data on equilibria in the binary systems with the use of Kollerand Wilson semi-empirical methods and the generalized theory of the associated solutions has been shown. The approach making it possible to evaluate relative volatility of the oxide metals, predict properties of the systems formed only by acid oxides, as well as to use the first obtained values of thermodynamic properties of the oxide systems for development of the materials used at high temperatures has been first proposed. The results of the thermodynamic investigations of the oxide melts have been included in the Metallurgia All-Union data bank, they found their application in the Moscow NPO 'Radon' and Magnitogorsk metallurgical plant. The field of application covers methods of production and application of oxide materials at high-temperatures; metallurgy, glass production, rocket and space technology, electronic instrument making, nuclear engineeringAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio