The kinetics of the ordering process in triclinic NaAlSi3O8
- 1 June 1960
- journal article
- Published by Mineralogical Society in Mineralogical Magazine and Journal of the Mineralogical Society
- Vol. 32 (249), 436-454
- https://doi.org/10.1180/minmag.1960.032.249.03
Abstract
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.Keywords
This publication has 9 references indexed in Scilit:
- Yoderite, a new hydrous magnesium iron aluminosilicate from Mautia Hill, TanganyikaMineralogical Magazine and Journal of the Mineralogical Society, 1959
- The crystal structures of low-temperature and high-temperature albitesActa Crystallographica, 1958
- The crystalline modifications of NaAlSi 3 O 8American Journal of Science, 1957
- Melting and crystal structure of cryolite (3NaF, A1F 3 )Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957
- Thermal transformations in solidsQuarterly Reviews, Chemical Society, 1957
- The powder patterns and lattice parameters of plagioclase felspars. I. The soda-rich plagioclasesMineralogical Magazine and Journal of the Mineralogical Society, 1956
- Diffusion of Ions in Some Simple GlassesJournal of the American Ceramic Society, 1951
- High-Temperature Albite and Contiguous FeldsparsThe Journal of Geology, 1950
- The structure of a cold-worked metalProceedings of the Physical Society, 1940