Bera, J (1992) Structure analysis of β"-alumina in syntaxy with β-alumina by two-stage X-ray powder diffractometry. Solid State Communications, 82 (3). pp. 205-210. ISSN 0038-1098

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A complete X-ray crystallographic investigation is carried out on a polycrystalline Li-stabilized beta''-alumina material containing beta-alumina in syntaxy. Beta''-alumina exhibits composition close to 1.493 Na+ per formula unit with a compensation mechanism exclusively due to Li+ substitution for Al(1) ion in the spinel block. The ionic distribution, almost-equal-to 33% at BR (Beevers-Ross) [or Na(1)] and almost-equal-to 67% at mO (mid oxygen) [or Na(2)], gives rise a local-order-type two-dimensional (2-D) (unroofed radical 2a- unroofed radical 2a) superlattice structure of the conduction plane instead of (square-root 3a- square-root 3a) superlattice given by previous works.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 26 Nov 2013 09:31
Last Modified: 29 Feb 2016 17:52

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