Malika A, Gouitaa N, fatimazahra A, Taj-dine L, Farid A. Resonance Phenomenon and Structural Properties of Fe Substituted Pzt Ceramics Prepared by Sol-Gel Method. IJMSE 2023; 20 (1) :1-14
URL:
http://ijmse.iust.ac.ir/article-1-2938-en.html
Abstract: (7524 Views)
In this paper, Pb1-xFex(Zr0.52Ti0.48)O3 (PFZT) nanopowders, with x from 0.00 up to 0.20, were synthesized by using the sol-gel method. The PFZT samples were characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and impedance spectroscopy. According to the experimental results, PFZT combines rhombohedral and tetragonal symmetries for all the samples without a change in phase structure. The SEM investigation indicated that the grains are homogeneous with regular form and the average grain size of PFZT ceramics changed with Fe concentration. The dielectric characterizations show that the dielectric permittivity increases with increasing temperature, and the Fe amount shifts down the temperature of transition. Moreover, a dielectric resonance phenomenon is observed for all the PFZT ceramics.
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HIGHLIGHTS :
The preparation method of Pb1-xFex(Zr0.52Ti0.48)O3 ceramics is the sol gel
method
The two phases rhombohedral and tetragonal are found for all the samples
and confirmed by the Rithveld and raman spectroscopy.
The SEM results indicated that the grains are homogeneous with regular
form and the average grain size of PFZT ceramics changed with Fe
concentration.
The dielectric permittivity increases with increasing temperature, and the
Fe amount shifts down the temperature of transition.
The dielectric constant us fonction of temprature and frequency presents a
dielectric resonance phenomenon.
Type of Study:
Research Paper |
Subject:
Ceramics