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Synthesis and characterization of doped Ba(Mg1/3Ta2/3)O3 ceramics

C. JINGA1,* , E. ANDRONESCU1, S. JINGA1, A. IOACHIM2, L. NEDELCU2, M. I. TOACSAN2

Affiliation

  1. University “Politehnica” of Bucharest, 011061 Bucharest, Romania
  2. National Institute of Materials Physics, 077125 Magurele - Bucharest, Romania

Abstract

Ba(Mg1/3Ta2/3)O3 (BMT) ceramic is a dielectric material possessing an extremely high Q×f product value (up to 400 THz) at microwave frequencies. This makes it suitable for applications as a dielectric resonator for wireless communications. BMT samples, prepared by solid-state reaction and doped with Nb5+, V5+ or Ga3+, were employed for compositional, structural and morphological characterization. In the present study, we report on the influence of dopants (type and quantity) and sintering temperature on the dielectric properties. It was found that the quality factor is maximum when Nb5+ is used as dopant..

Keywords

Complex perovskite, Cationic order, Dopants, Quality factor.

Submitted at: Dec. 1, 2009
Accepted at: Feb. 18, 2010

Citation

C. JINGA, E. ANDRONESCU, S. JINGA, A. IOACHIM, L. NEDELCU, M. I. TOACSAN, Synthesis and characterization of doped Ba(Mg1/3Ta2/3)O3 ceramics, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 2, pp. 282-287 (2010)