Effect of calcium on the structural properties of Ba(1-x)Ca (x) TiO3 particles synthesized by complex polymerization method
Nenhuma Miniatura disponível
Data
2014-04-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Springer
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
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.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Journal Of Materials Science. New York: Springer, v. 49, n. 7, p. 2875-2878, 2014.