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The high-temperature behaviour of beryl melts and glasses

Published online by Cambridge University Press:  14 March 2018

R. P. Miller  and
R. A. Mercer
R. P. Miller
Affiliation:
National Chemical Laboratory, Teddington, Middlesex
R. A. Mercer
Affiliation:
National Chemical Laboratory, Teddington, Middlesex
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Summary

The course of all crystalline structural changes undergone by the mineral beryl, its melt and glass, has been followed as a function of widely differing but accurately known thermal history. Non-equilibrium ordering processes have been characterized by new techniques in high-temperature microscopy.

The relative influence that beryllium and aluminium ions exert on the phase changes has been established by studies on synthetic melts and glasses representing hypothetical beryls of differing ratios of Be2+:Al3+ ions.

The dynamic changes between the oxide and orthosilicate structures into which the systems reconstitute include the formation of a metastable hybrid beryllium aluminium silicate, which is viewed as a beryllium-containing mullite. The crystallochemical changes have been interpreted in terms of a structural model of the melts and glasses that is shown to be consistent with the ordering effects predicted from the field strengths of the cations.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 35 , Issue 270 , June 1965 , pp. 250 - 276
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1965

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References

page 250 note 1 Gentile, A. L., Cripe, D. M., and Andres, F. H., Amer. Min., 1963, vol. 48, p. 940.Google Scholar

page 250 note 2 Van Valkenburg, A. and Weir, C. E., Bull. Geol. Soc. Amer., 1957, vol. 68, p. 1808.Google Scholar

page 251 note 1 C. B. Sawyer and B. R. F. Kjellgren, U.S. Pat. 1823864, 1931 ; 2018473, 1935; 2092621, 1937.

page 251 note 2 Mercer, R. A. and Miller, R. P., Journ. Sci. Instr., 1963, vol. 40, p. 352.CrossRefGoogle Scholar

page 251 note 3 Mercer, R. A. and Miller, R. P., Nature, 1963, vol. 197, p. 683.CrossRefGoogle Scholar

page 251 note 4 Welch, J. H., Journ. Sci. Instr., 1954, vol. 31, p. 458.CrossRefGoogle Scholar

page 252 note 1 Mercer, R. A. and Miller, R. P., Journ. Sci. Instr., 1963, vol. 40, p. 352.CrossRefGoogle Scholar

page 272 note 1 Dietzel, A., Zeitschr. Elektrochem., 1942, vol. 48, p. 9.Google Scholar

page 272 note 2 J. O'M. Bockris, Mackenzie, J. D., and Kitchener, J. A., Trans. Faraday Soc., 1955, vol. 51, p. 1734 Google Scholar; J. O'M. Bockris, Kitchener, J. A., and Ignatowicz, S., and Tomlinson, J. W., ibid., 1952, vol. 48, p. 75 Google Scholar; J. O'M. Boekris, J. A. Kitehener, and A. E. Davis, ibid., p. 536 ; Tomlinson, J. W., Heynes, M. S. R., and Boekris, J. O'M., ibid., 1958, vol. 54, p. 1822.Google Scholar

page 272 note 3 [Pobedimskaya, E. A. and Belov, N. V.], CCCP (Compt. rend. Aead. Sci. URSS), 1959, vol. 129, p. 900.Google Scholar

page 272 note 4 [Belov, N. V. and Tarkhova, T. N.], ibid., 1949, vol. 69, p. 365 Google Scholar; Belov, N. V., Journ. struktr, chem. (USSR) (translation of ), 1960, vol. 1, p. 35.CrossRefGoogle Scholar

page 272 note 5 Hamburger, G. E. and Buerger, M. J., Amer. Min., 1948, vol. 33, p. 532.Google Scholar

page 272 note 6 W. L. Bragg, The Structure of the Silicates, Leipzig, 1932.

page 373 note 1 Modern Aspects of the Vitreou~ State, edited by J. D. Mackenzie, London, 1960, vol. 1, p. 63.

page 373 note 2 F. D. Richardson, Chem. and Ind., 1961, 29 July, p. 1132.

page 373 note 3 Glasser, F. P., Warshaw, I., and Roy, R.. Phys. and Chem. of Glasses, 1960, vol. 1, p. 39.Google Scholar