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A comparison of gel and glass starting materials for phase equilibrium studies

Published online by Cambridge University Press:  05 July 2018

G. M. Biggar  and
M. J. O'Hara
G. M. Biggar
Affiliation:
Grant Institute of Geology, University of Edinburgh, West Mains Road, Edinburgh 9
M. J. O'Hara
Affiliation:
Grant Institute of Geology, University of Edinburgh, West Mains Road, Edinburgh 9
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Summary

A method of preparing compositions suitable for phase equilibrium studies in systems containing CaO-MgO-Al2O3-SiO2-Fe-O2-Na2O employing a gelling technique is described. The subsolidus assemblages obtained from the recrystallization of some of these gels and from the recrystallization of devitrified glasses of the same composition are compared. It is not yet clear whether either starting material has any advantage as the gels may retain early formed metastable phases and the glasses may fail to nucleate stable phases.

Type
Research Article
Information
Mineralogical Magazine , Volume 37 , Issue 286 , June 1969 , pp. 198 - 205
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1969

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References

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