Effect of calcium on the structural properties of Ba(1-x)Ca (x) TiO3 particles synthesized by complex polymerization method


Autoria(s): Araujo, V. D.; Motta, F. V.; Marques, A. P. A.; Paskocimas, C. A.; Bomio, M. R. D.; Longo, E.; Varela, J. A.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

03/12/2014

03/12/2014

01/04/2014

Resumo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Processo FAPESP: 98/14324-8

Ferroelectric materials, such as barium titanate (BaTiO3), have been extensively studied for application in electronic and optical devices. The substitution of Ba by Ca is an effective method to improve the piezoelectricity temperature stability, as it can greatly lower the tetragonal-orthorhombic phase transition temperature, whereas the change of the Curie point is negligible. Ba(1-x)Ca (x) TiO3 (x = 0, 0.05, 0.10, 0.15, and 0.20) powders were prepared by complex polymerization method. The effect of calcium on the tetragonality of the BaTiO3 system was monitored using basic characterization techniques: X-ray diffraction, differential scanning calorimetry, and Raman spectroscopy. The results indicate that increased calcium contents raise the Curie temperature (T (c)) and that the addition of calcium in the BT matrix reduces tetragonality.

Formato

2875-2878

Identificador

http://dx.doi.org/10.1007/s10853-013-7993-2

Journal Of Materials Science. New York: Springer, v. 49, n. 7, p. 2875-2878, 2014.

0022-2461

http://hdl.handle.net/11449/111407

10.1007/s10853-013-7993-2

WOS:000330791400021

Idioma(s)

eng

Publicador

Springer

Relação

Journal of Materials Science

Direitos

closedAccess

Tipo

info:eu-repo/semantics/article