EFFECT OF ATMOSPHERE ON THE PEROVSKITE PHASE STABILITY OF 0.87PLMN-0.13PT POWDERS

Authors

  • Dr.C. Fernando A. Londoño-Badillo Grupo de Cerâmicas Ferroelétricas Universidade Federal de São Carlos, São Carlos, Brasil
  • M. Sc. Diana J. López-Benavides Departamento de Química Universidade Federal de São Carlos, São Carlos–SP, Brasil
  • M. Sc. Enrique R. Perez-Delfin Departamento de Física, Universidad de Oriente, Santiago de Cuba
  • Dra. C. Ducinei Garcia Grupo de Cerâmicas Ferroelétricas Universidade Federal de São Carlos, São Carlos, Brasil
  • Jose Antonio Eiras Grupo de Cerâmicas Ferroelétricas Universidade Federal de São Carlos, São Carlos, Brasil

Abstract

In this study, powders of the perovskite compound 0.87(Pb,La)(Mg,Nb)O3-0.13PbTiO3, or PLMN-13PT, were produced by the columbite method in various atmospheres (oxygen, nitrogen and argon), in order to achieve perovskite phase stability. The phase formation was investigated by X-ray diffraction, thermogravimetric analyses and scanning electron microscopy. The influence of the oxygen and argon calcining atmospheres was similar and led to adequate perovskite phase stability in the PLMN-13PT powders. However, the powder calcined in nitrogen showed an unwanted amount of the pyrochore phase.
Keywords: perovskite phase formation, atmosphere control, ferroelectric materials, PLMN-PT.

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Published

2015-11-04

How to Cite

Londoño-Badillo, D. F. A., López-Benavides, M. S. D. J., Perez-Delfin, M. S. E. R., Garcia, D. C. D., & Eiras, J. A. (2015). EFFECT OF ATMOSPHERE ON THE PEROVSKITE PHASE STABILITY OF 0.87PLMN-0.13PT POWDERS. Revista Cubana De Química, 24(1), 19–26. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/293

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Vol. 24 No. 1 (2012)

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Artículos

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