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The kinetics of the ordering process in triclinic NaAlSi3O8

Published online by Cambridge University Press:  14 March 2018

J. D. C. McConnell  and
Duncan McKie
J. D. C. McConnell
Affiliation:
Dept. of Mineralogy and Petrology, Downing Place, Cambridge
Duncan McKie
Affiliation:
Dept. of Mineralogy and Petrology, Downing Place, Cambridge
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Summary

A kinetic analysis is presented of the data of MacKenzie (1957) on the hydrothermal treatment of NaAlSi3O8 under isobaric, isothermal conditions in the temperature range 450° C. to 1000° C.

The analysis indicates the existence of a smeared polymorphic transformation in the temperature range around 600° C. The activation energy for the transformation is about 60 kcal. mole−1 and has been equated with the process of self-diffusion involved in Al-Si ordering in the structure. Some dry-heating experiments and the influence of varying water vapour pressure are discussed.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 32 , Issue 249 , June 1960 , pp. 436 - 454
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1960

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References

Bragg, (W.L.), 1940. Proc. Phys. Soc., vol. 52, p. 105.Google Scholar
Ferguson, (R.B.), Traill, (R.J.), and Taylor, (W.H.), 1958. Acta Cryst., vol. 11, p. 331.CrossRefGoogle Scholar
Glasston, (S.), Laidler, (K.J.), and Eyring, (H.), 1941. The Theory of Rate Processes. McGraw-Hill, New York.Google Scholar
Johnson, (J.R.), Bristow, (R.R.), and Blau, (H.H.), 1951. Journ. Amer. Ceram. Soc., vol. 34, p. 165.CrossRefGoogle Scholar
Landon, (G.J.) and Ubbelohde, (A.R.), 1957. Proc. Roy. Soc., ser. A, vol. 240, p. 160.Google Scholar
MacKenziE, (W.S.), 1957. Amer. Journ. Sci., vol 255, p. 481.Google Scholar
McKIE, (D.), 1959. Min. Mag., vol. 32, p. 282.Google Scholar
Pauling, (L.), 1940. The Nature of the Chemical Bond. 2nd edn. Oxford University Press.Google Scholar
Smtth, (J.V.), 1956. Min. Mag., vol. 31, p. 47.Google Scholar
Tuttle, (O. F.) and Bowen, (N.L.), 1950. Journ. Geol., Chicago, vol. 58, p. 572.Google Scholar
Ubbelohde, (A.R.), 1957. Quart. Rev. Chem. Soc., vol. 11, p. 246.Google Scholar