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Rem: Revista Escola de Minas

Print version ISSN 0370-4467On-line version ISSN 1807-0353

Abstract

PEREIRA, Renato Alves; MENDES FILHO, Antônio Alves  and  ARAUJO, Fernando Gabriel da Silva. Influência do lantânio nas propriedades elétricas do titanato de bário obtido por síntese hidrotérmica. Rem: Rev. Esc. Minas [online]. 2006, vol.59, n.2, pp.207-212. ISSN 0370-4467.  http://dx.doi.org/10.1590/S0370-44672006000200010.

Barium titanate powders were produced by hydrothermal synthesis, at 220ºC, for 20 hours, in stoichiometric composition and doped with lantanum varying from 0.2 to 1.0mol%.The powders were characterized by x-ray diffraction and then pressed at 3,000 kgf to form discs. The discs were sinterized on air at 1250ºC for 5 hours and characterized by x-ray diffraction, scanning electron microscopy and complex impedanciometry

Keywords : Hydrothermal synthesis; doping; sinterizing.

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