IMPACT OF TEMPERATURE ON STRUCTURAL, MICRO-STRUCTURAL AND DIELECTRIC PROPERTIES OF BISMUTH FERRITE

Authors

  • A. Maqsood Air University, Islamabad
  • A. Rauf Air University, Islamabad
  • M. S. Awan Air University, Islamabad
  • M. A. Rehman COMSATS University, Islamabad, Wah
  • M. Ikram Punjab University

Keywords:

bismuth ferrite; co-precipitation technique; differential scanning calorimetry; magnetic properties.

Abstract

Single phase bismuth ferrite BiFeO3 (BOF) was prepared by co-precipitation technique at low temperature (85°C). The powder was calcined at
450°C, 550°C and 650°C for 1 hour. XRD analysis confirmed hexagonal phase formation. Crystallite size was estimated from the XRD data that showed an increasing trend with the elevated calcination temperatures. Differential Scanning Calorimetry (DSC) was carried out for phase transformation (α to β), Néel temperature (TN) and melting point temperatures. The variation in microstructures of the BFO pallets with increasing sintering temperatures were studied by Scanning Electron Microscopy (SEM). Electrical ac measurements were carried out within frequency range of 20Hz to 3MHz in this way dielectric constant (έ), dielectric loss (tan δ), and ac conductivity (ϬAC) were also determined. Magnetic properties of BFO powder were studied by M-H loop
by utilizing vibrating sample magnetometer (VSM) and ferroelectric properties were confirmed from P-E loop. Both magnetic and ferroelectric properties were carried out at room temperature.

Published

2022-05-24

How to Cite

Maqsood, A., Rauf, A., Awan, M. S., Rehman, M. A., & Ikram, M. (2022). IMPACT OF TEMPERATURE ON STRUCTURAL, MICRO-STRUCTURAL AND DIELECTRIC PROPERTIES OF BISMUTH FERRITE. AUJoGR: Air University Journal of Graduate Research, 1(1), 1-8. Retrieved from https://journals.au.edu.pk/ojsgraduatestudies/index.php/ojs1/article/view/2

Issue

Vol. 1 No. 1 (2021): Air University Journal of Graduate Research (AUJoGR)

Section

Articles