Download PDFOpen PDF in browser

Effect of Mg on the Dielectric Properties of BaTiO3 Ceramic Materials Produced by Sol-Gel Process: (Ba1-xMgxTiO3)

EasyChair Preprint no. 8838

8 pagesDate: September 16, 2022


In this work the effect of doping with magnesium on the structural and physical properties of BaTiO3 were studied. The ceramic materials of composition Ba1-xMgxTiO3 were prepared by the sol-gel process at low sintering temperature (700°C).

In our preparation, Ba1-xMgxTiO3 were synthesized using magnesium acetate Mg(CH3COO)2,3H2O, titanium alkoxide Ti[OCH(CH3)2]4 and Barium acetate (Ba(CH3COO)2.

Analysis of the various RX spectra obtained shows the appearance of three distinct domains.

       The first domain ranges from x=0 to 0.15, the second domain ranges from x=0.2 to 0.8 and the last domain for x ≥ 0.9.

The analysis of the Raman spectra of BaMgxTiO3 compounds shows the presence of three domains confirming the results obtained by XRD.

The difference of the rays and the atomic numbers between Ba and Mg, causes the progressive distortion of the quadratic mesh to the pseudo cubic phase.

Dielectric measurements (εr) were performed using an impedance analyzer HP 4284A in the frequency range from 1kHz to 1.8MHz depending on the temperature, ranging from ambient up to 200 °C, with a heating rate of 5°C / min.

When the level of the magnesium inserted increases (figure), the peaks of the transition from the ferroelectric phase to the para-electric phase become more and more spread out. It is also observed that the value of Tm remains independent of the frequency.

Keyphrases: Ceramic, Dielectric properties, Doping BMxT, sol-gel

BibTeX entry
BibTeX does not have the right entry for preprints. This is a hack for producing the correct reference:
  author = {Ouafae El Ghadraoui and Mohammed Zouhairi and El Houcine Lahrar and Ahmed Harrach and Lamcharfi Taj Edine and Farid Abdi},
  title = {Effect of Mg on the Dielectric Properties of BaTiO3 Ceramic Materials Produced by Sol-Gel Process: (Ba1-xMgxTiO3)},
  howpublished = {EasyChair Preprint no. 8838},

  year = {EasyChair, 2022}}
Download PDFOpen PDF in browser