Synthesis and characterization of SrBi2Nb2O9 powders prepared by a new chemical method
authors Aguilar, GG; Costa, MEV
editors Martins, R; Fortunato, E; Ferreira, I; Dias, C
nationality International
journal ADVANCED MATERIALS FORUM II
author keywords SrBi2Nb2O9; Pechiny-type synthesis; Bi-layered perovskites; ceramics
keywords SRBI2TA2O9 THIN-FILMS; OXIDES; ROUTE; BI
abstract SrBi2Nb2O9 (SBN) is a Bi-layered perovskite compound that, due to it relatively high Curie temperature, has potential application as high ceramic transducer. The preparation of SBN by the conventional solid state route requires high temperatures (above 1000degreesC) which allow significant bismuth losses, leading to non-stoichiometric compositions. This work describes a new method to obtain SBN that overcomes this problem. Compared to sol-gel methods, it has the advantage of using reagents that are less toxic and less expensive than the alkoxides used by these chemical methods. The thermal behavior of SBN precursors prepared by this new method is compared to that observed by the conventional solid state route. This new method offers the possibility of producing SBN at lower temperatures than those needed by the conventional route.
publisher TRANS TECH PUBLICATIONS LTD
issn 0255-5476
isbn 0-87849-941-5
year published 2004
volume 455-456
beginning page 186
ending page 190
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000222018500040
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