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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/39165
Title: 
Preparation and characterization of nanosized SrBi2Nb2O9 powder by the combustion synthesis
Author(s): 
Institution: 
  • Universidade Federal de São Carlos (UFSCar)
  • Universidade Estadual Paulista (UNESP)
ISSN: 
0167-577X
Abstract: 
This work presents the preparation of SrBi2Nb2O9 (SBN) directly by the combustion synthesis. Strontium nitrate, niobium ammonium oxalate (NH4H2[NbO-(C2O4)(3)].3H(2)O) and bismuth oxide were used as oxidant reactants and urea as fuel. The influence of the fuel was evaluated by the addition of different fuel amounts (50%, 100%, 200% and 300%), 100% being the stoichiometric proportion. The XRD patterns showed that the SBN perovskite crystallized as the majority phase. The as-synthesized stoichiometric powder presented a specific surface area of around 13 m(2)/g and a mean grain size of around 16 nm. Dilatometric measurements showed that the maximum sintering rate occurs at 1275degreesC. The determination of the ferroparaelectric transition showed a Curie temperature (T-c) of 429degreesC. (C) 2002 Elsevier B.V. B.V. All rights reserved.
Issue Date: 
1-Jun-2003
Citation: 
Materials Letters. Amsterdam: Elsevier B.V., v. 57, n. 19, p. 2812-2816, 2003.
Time Duration: 
2812-2816
Publisher: 
Elsevier B.V.
Keywords: 
  • combustion synthesis
  • SrBi2Nb2O9
  • powder
  • ferroelectric
  • bismuth layer
Source: 
http://dx.doi.org/10.1016/S0167-577X(02)01380-0
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/39165
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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