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Mixed Alkali Effects in δ-Aluminas

Published online by Cambridge University Press:  15 February 2011

John L. Bjorkstam,
Marco Villa,
Sergio Aldrovaidi,
Maurizio Corti and
Jamies S. Frye
John L. Bjorkstam
Affiliation:
Department of Electrical Engineering, University of Washington, Seattle, WA 98195
Marco Villa
Affiliation:
Istituto di Fisica “A. Volta” e Gruppo Nazionale di Strutture della Materia del C.N.R., 27100 Pavia, Italy
Sergio Aldrovaidi
Affiliation:
Istituto di Fisica “A. Volta” e Gruppo Nazionale di Strutture della Materia del C.N.R., 27100 Pavia, Italy
Maurizio Corti
Affiliation:
Istituto di Fisica “A. Volta” e Gruppo Nazionale di Strutture della Materia del C.N.R., 27100 Pavia, Italy
Jamies S. Frye
Affiliation:
Regional NMR Facility, Colorado State University, Ft. Collins, Colorado 80523
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Abstract

This paper presents a NMR study of mixed alkali effects in δ-aluminas. It is shown that the BPP theory of relaxation does not describe the NMR results. However, with an elementary analysis of the data, NMR yields information about the cation dynamics which substantially agrees with the diffusion measurements.

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References

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