Issue 34, 2014

Enhanced oxide-ion conductivity in highly c-axis textured La10Si6O27 ceramic

Abstract

Here, we report a highly c-axis textured apatite-type La10Si6O27 ceramic with conductivity of 1.3 × 10−2 S cm−1 at 500 °C, which is an 11.2 times enhancement compared with isotropic La10Si6O27 ceramic. The highly c-axis textured La10Si6O27 was fabricated by a arc-melting process with a unilateral temperature gradient as the main driving force for the formation of the La10Si6O27 texture. The conductivity enhancement is mainly attributed to the enhanced mobility contribution along the c-axis with low activation energy and the relatively small grain boundary blocking effect along the c-axis.

Graphical abstract: Enhanced oxide-ion conductivity in highly c-axis textured La10Si6O27 ceramic

Article information

Article type
Communication
Submitted
02 Jun 2014
Accepted
30 Jun 2014
First published
01 Jul 2014

J. Mater. Chem. A, 2014,2, 13817-13821

Enhanced oxide-ion conductivity in highly c-axis textured La10Si6O27 ceramic

G. Ou, X. Ren, L. Yao, H. Nishijima and W. Pan, J. Mater. Chem. A, 2014, 2, 13817 DOI: 10.1039/C4TA02768J

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