Regions of phase separation, both stable and metastable, have now been detected in most simple silicate systems. Various aspects of phase separation have been discussed in detail in the literature, mainly from the thermodynamic standpoint, and many relationships in these phenomena have been explained. Application of the theory of ideal and regular solutions proved adequate for qualitative and in some instances also for quantitative description of phase-separation phenomena. However, thermodynamic treatment is concerned mainly with the state of the system and says very little about the nature of the phenomenon itself [1]. In this communication we attempt to examine, in general form, processes of phase separation in binary silicate systems, using known experimental data and analyzing various views of their nature.


Phase Separation Silica Content Silicate System Modifier Cation Binodal Curve 
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Copyright information

© Consultants Bureau, New York 1973

Authors and Affiliations

  • F. Ya. Galakhov
  • B. G. Varshal

There are no affiliations available

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