Synthesis of BaTiO3 and Ba0.77Ca0.23TiO3 by the proteic sol-gel method

Authors

  • D. V. Sampaio Grupo de Materiais Cerâmicos Avançados, Universidade Federal de Sergipe
  • J. C. A. Santos Grupo de Materiais Cerâmicos Avançados, Universidade Federal de Sergipe
  • Z. S. Macedo Grupo de Materiais Cerâmicos Avançados, Universidade Federal de Sergipe
  • R. S. Silva Grupo de Materiais Cerâmicos Avançados, Universidade Federal de Sergipe

Keywords:

Barium titanate, Barium calcium titanate, Protiec sol-gel method, Ferroelectric ceramics.

Abstract

In this work we are proposing a new synthesis route in order to obtain BaTiO3 and Ba0.77Ca0.23TiO3 based on Proteic Sol-Gel method, which use coconut water as the main solvent and polymerization agent. Differential thermal analysis (DTA), thermogravimetric (TG), X-Ray diffraction and Impedance spectroscopy techniques were used to the characterization of the synthesis process. From the thermal decomposition study of the precursor solution, a calcination temperature above 950 °C was adopted. The ceramics sintered at 1300 °C/2h present a good relative density and single crystalline phase. Finally, the dielectric constant of the ceramic bodies was monitored as the principal quality factor. 

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How to Cite

Sampaio, D. V., Santos, J. C. A., Macedo, Z. S., & Silva, R. S. (2011). Synthesis of BaTiO3 and Ba0.77Ca0.23TiO3 by the proteic sol-gel method. Scientia Plena, 5(11). Retrieved from https://scientiaplena.emnuvens.com.br/sp/article/view/739

Issue

Vol. 5 No. 11 (2009): November/Novembro 2009

Section

Articles

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