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has been cited by the following article:

• TITLE: Determination of A.C. Conductivity of Nano-Composite Perovskite Ba(1- x - y)Sr(x)TiFe(y)O3 Prepared by the Sol-Gel Technique

  AUTHORS: M. Willander, O. Nur, M. Q. Israr, A. B. Abou Hamad, F. G. El Desouky, M. A. Salem, I. K. Battisha

  KEYWORDS: Sol-Gel; Dielectric Permittivity; A.C. Conductivity; Nano-Composite BaSrTiO3 (BST); TEM; XRD and SEM

  JOURNAL NAME: Journal of Crystallization Process and Technology, Vol.2 No.1, January 13, 2012

  ABSTRACT: Nano-composite, perovskite Ba(1- x - y)Sr(x)TiFe(y)O3, denoted as (BSTFe) in powder form was derived via sol-gel (SG) method followed by sintering at fixed temperature 750℃ for one hour. The chemical composition, morphology and structure of the powder samples were investigated by using X-ray diffraction (XRD), transmission electron microscope (TEM) and scanning electron microscope (SEM). The XRD characterization indicates formation of a cubic crystalline phase in the pure BST. A well defined perovskite phase with nano-crystallite sizes equal to about 34 nm was achieved from XRD for B10ST3F sample, while TEM study confirmed the obtained XRD results giving the following crystallite size value about 33.75 nm for the same sample. The dielectric A.C. conductivity was evaluated as a function of temperature and frequency ranging from 42 Hz up to 1 MHz.