Title of article
Ordering and phonons in Ba3CaNb2O9 complex perovskite
Author/Authors
Rodrigues، نويسنده , , Joمo Elias Figueiredo Soares and Moreira، نويسنده , , Edvan and Bezerra، نويسنده , , Débora Morais and Maciel، نويسنده , , Adeilton Pereira and de Araujo Paschoal، نويسنده , , Carlos William، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
6
From page
3298
To page
3303
Abstract
In this work we performed a detailed investigation about ordering in Ba3CaNb2O9 perovskite. The sintering temperature and time were changed to obtain samples with different ordering. The order parameters were probed by Raman spectroscopy based on a partial disordered model. To use the partial disordered model correctly we performed ab initio calculations in Ba3CaNb2O9 to assign the optical phonons. The results showed that sintering temperature improves order while sintering time is not so efficient to promote order.
Keywords
A. Ceramics , B. Chemical synthesis , D. Crystal structure , C. Raman spectroscopy , A. Oxides
Journal title
Materials Research Bulletin
Serial Year
2013
Journal title
Materials Research Bulletin
Record number
2103990
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