Issue 33, 2018

Novel insight into the structure and properties of lead-free dielectric Sr3TiNb4O15

Abstract

Sr3TiNb4O15 has been synthesised and its structure and dielectric properties characterised. In contrast to previously reported results the compound has been found to form with Pna21 symmetry and unit cell dimensions a = 12.3631(19), b = 12.4027(19) and c = 7.7601(12) Å. Variable temperature studies show a phase transition from orthorhombic to tetragonal symmetry at approximately 625 K, much higher than previously reported. Temperature-dependent dielectric measurements have also been performed and these correlate very well with the observed phase transition temperature.

Graphical abstract: Novel insight into the structure and properties of lead-free dielectric Sr3TiNb4O15

Associated articles

Article information

Article type
Paper
Submitted
09 Febr. 2018
Accepted
03 Jūn. 2018
First published
19 Jūn. 2018

J. Mater. Chem. C, 2018,6, 8890-8896

Novel insight into the structure and properties of lead-free dielectric Sr3TiNb4O15

T. A. Whittle, W. R. Brant, R. L. Withers, Y. Liu, C. J. Howard and S. Schmid, J. Mater. Chem. C, 2018, 6, 8890 DOI: 10.1039/C8TC00732B

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