On the structural integrity of the spinel block in the Β"-alumina structure

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The Β′′-alumina structure is examined in detail and an analysis is presented of the three-dimensional integrity of the lattice. The layer structure that is responsible for the very high sodium conduction rate is the specific focus. Rigid layers that are derived from the cubic spinel structure are interleaved by more open honeycomb pathways where rapid ion diffusion takes place. The three-dimensional rigidity of the spinel block in this structure makes it possible to accurately quantify the conduction layer thickness based only on the hexagonal unit-cell dimensions, as suggested originally by Harbach [(1983), J. Mater. Sci. 18, 2437-2452]. His calculation is tested rigorously against the many single-crystal structure determinations that have been made on the Β′′-alumina family compounds and excellent correlation is found.

Original languageEnglish
Pages (from-to)118-122
Number of pages5
JournalActa Crystallographica Section B: Structural Science
Volume68
Issue number2
DOIs
Publication statusPublished - Apr 2012

Fingerprint

Aluminum Oxide
Structural integrity
Rigidity
Crystal structure
Sodium
Mothers
Single crystals
Ions
spinell

Keywords

  • Β′′-alumina
  • conduction layer
  • spinel block

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

On the structural integrity of the spinel block in the Β"-alumina structure. / Birnie, Dunbar P.

In: Acta Crystallographica Section B: Structural Science, Vol. 68, No. 2, 04.2012, p. 118-122.

Research output: Contribution to journalArticle

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