Diffusion in Cubic Sulphates
Open Access
- 1 May 1968
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 23 (5) , 679-682
- https://doi.org/10.1515/zna-1968-0508
Abstract
The interdiffusion coefficients (D) of Na+, Ag+, K+, Rb* and Τl+ in pure f. c. c. Li2SO4 have been measured between 590 and 820 °C. D and the Arrhenius’ activation energies decrease in the same order as the ionic radii increase. D is a function both of the masses and the radii of the impurity cations. The results show that the Na+ and Ag* ions mainly diffuse in the sulphate lattice with the same mechanism as the lithium ions, while the larger ions are mobile in defects in the lattice. The Li*, Na+ and Ag* ions are probably diffusing between octahedral positions.Keywords
This publication has 0 references indexed in Scilit: