The Use of Phase Rule Diagrams of Aluminosilicate Systems for Calculating Melt Amount and Constituents Appearing in Ceramic Mixture under Firing

The paper mentions already existing phase rule diagrams used for calculation of melt amount and phase constituents for binary and ternary systems. Then the author focuses upon the newly designed method of calculation both of melt amount and constituents and of undissolved residue composition for complex aluminosilicate systems under firing. The method is based on the use of existing ternary phase rule diagrams of aluminosilicate systems and on the principle of additivity of the processes underway. The article describes the methodology and consecutive sequence of calculation. The designed methodology allows to calculate melt amount and constituents basing on clay chemistry / batch constituents (whatever the temperature is), to estimate the optimum temperature for firing the batch mixture under consideration and to determine the temperature range of sintered status as well as the swelling interval.