Study of phase diagrams by the method of thermoroentgenography exemplified by the system NaVO3-KVO3

Thermoroentgenography method is used to study NaVO3-KVO3 system. Crystal phase elementary cell parameters are determined for all the samples, the temperatures being different. The given method is used to solve problems on identification of the system chemical compounds, to determine the boundaries of isomorphic phase miscibility and, thus, to plot the system phase diagram. To determine the solidus lines crystal phase constant lattices in the melt are first measured are used