Synchrotron radiation study of structural tendencies in Aurivillius ceramics


Por: Fuentes L., Fernandez J.F., Fuentes M.E., Lascano L., Villafuerte M.E., Montero M.E., Olivera R., Mehta A., Jardiel T.

Publicada: 1 ene 2006
Resumen:
A review of structural tendencies, as observed in several synchrotron radiation diffraction studies of Aurivillius phases, is presented. The role of powder synchrotron radiation is analyzed. Investigated phases belong to Aurivillius families with n from 3 to 6, with partial substitution of small Ti cations and of large Bi cations. Representative formulas are: Bi4 Ti3- xWxO12, Bin+1Ti3Fe n-3O3n +3 and (Ba, Pb)2 Bi 4 Ti5 O18. Observed general behavior shows a tendency to increase disorder with increasing chemical complexity. The structure-polarization relationship in Ba2Bi4Ti 5O18 is investigated and a paradox between published results is highlighted. Synchrotron radiation results tend to confirm Lightfoots's conclusions, suggesting electric polarization along the z axis. Copyright © Taylor & Francis Group, LLC.

Filiaciones:
Fuentes L.:
 Centro de Investigación en Materiales Avanzados, Chih, Mexico

Fernandez J.F.:
 Instituto de Cerámica y Vidrio, Arganda del Rey, Spain

Fuentes M.E.:
 Universidad Autónoma de Chihuahua, Chih, Mexico

Lascano L.:
 Escuela Politecnica Nacional, Quito, Ecuador

Villafuerte M.E.:
 Universidad Nacional Autonónoma de México, Mexico

Montero M.E.:
 Centro de Investigación en Materiales Avanzados, Chih, Mexico

Olivera R.:
 Centro de Investigación en Materiales Avanzados, Chih, Mexico

Mehta A.:
 Stanford Synchrotron Radiation Laboratory, Stanford, United States

Jardiel T.:
 Instituto de Cerámica y Vidrio, Arganda del Rey, Spain
ISSN: 00150193
Editorial
Gordon & Breach Science Publ Inc, Newark, NJ, United States, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND, Reino Unido
Tipo de documento: Conference Paper
Volumen: 339 Número: 1 PA
Páginas: 209-218
WOS Id: 000239819400027