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Borate Glasses pp 399-411 | Cite as

Kinetics of Volatilization of Sodium Borate Melts

  • M. Cable
Part of the Materials Science Research book series (MSR, volume 12)

Abstract

The high temperature chemistry of simple glasses is notoriously complex: apart from the experimental difficulties commonly found at temperatures above 1000°C, chemical equilibria often are strongly concentration-dependent even at low concentrations. In such circumstances it is very attractive to consider evaluating the concentration and temperature dependence of chemical activities by studying the vapor in equilibrium with a melt (provided that the experimental difficulties can be overcome). The simplest experiment that may give useful information related to this is to measure weight loss and analyse the residue, thus determining the average composition of the volatile material. This kind of experiment is also of direct interest to the glassmaker for the insight it can give into problems of inhomogeneities produced by volatilization, corrosion of superstructure and regenerators by vapors and atmospheric pollution problems. The next refinement is to examine and analyze the vapor, then to design an experiment which ensures that the melt and vapor are in equilibrium.

Keywords

Kcal Mole Mass Transfer Coefficient Borate Glass Sodium Borate Measure Weight Loss 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • M. Cable
    • 1
  1. 1.Department of Ceramics, Glasses and PolymersSheffield UniversityEngland

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