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Relations Between Structure and Ionic Conductivity of Some Cristobalite-Related Compounds

Published online by Cambridge University Press:  21 February 2011

Sten Frostiäng ,
Jêkabs Grîns  and
Mats Nygren
Sten Frostiäng
Affiliation:
Departement of Inorganic Chemistry Arrhenius Laboratory, University of Stockholm. S-1 0691 Stockholm, Sweden
Jêkabs Grîns
Affiliation:
Departement of Inorganic Chemistry Arrhenius Laboratory, University of Stockholm. S-1 0691 Stockholm, Sweden
Mats Nygren
Affiliation:
Departement of Inorganic Chemistry Arrhenius Laboratory, University of Stockholm. S-1 0691 Stockholm, Sweden
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Abstract

A comparative study of the isotypic Na2BeSiO4, Na1.8[Ga0.2Zn0.8]SiO4 and Na1.8[Ga0.2Zn0.8]Ge04 structures has revealed differences in conduction pathway geometries, and calculations show that the two Na-deficient compounds possess larger “bottlenecks”. A conduction mechanism, with Na ions using interstitial sites during migration is suggested.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 135: Symposium M – Solid State Ionics I , 1988 , 239
Copyright
Copyright © Materials Research Society 1989

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References

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