HARDING, JH;
SANGSTER, MJL;
STONEHAM, AM;
(1987)
CATION DIFFUSION IN ALKALINE-EARTH OXIDES.
J PHYS C SOLID STATE
, 20
(32)
5281 - 5292.
10.1088/0022-3719/20/32/014.
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Abstract
Absolute jump rates for cation-vacancy interchanges in MgO, CaO, SrO and BaO are calculated from a set of model inter-ionic potentials. Internal energies and vibrational entropies over a wide range of temperatures (i.e. at expansions which within the models correspond to these temperatures in the quasi-harmonic approximation) are evaluated and, from these, migration enthalpies and pre-exponential frequency factors are deduced. Correlations between these two diffusion parameters for the family of oxides are investigated.
| Type: | Article |
|---|---|
| Title: | CATION DIFFUSION IN ALKALINE-EARTH OXIDES |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/0022-3719/20/32/014 |
| Publisher version: | http://dx.doi.org/10.1088/0022-3719/20/32/014 |
| Language: | English |
| Additional information: | Text made available to UCL Discovery by kind permission of IOP Publishing, 2012 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/91191 |
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