Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5437990 | Ceramics International | 2017 | 15 Pages |
Abstract
In this work, ultrapure hexagonal BaFe12O19 nanoferrite was synthesized by a facile co-precipitation method. Formation of single phase was analyzed by using wide angle X-ray diffraction. Crystallite size was found to increase from 50 nm to 78 nm when annealing temperature increased from 800 °C to 1000 °C, respectively. Ferrimagnetic behavior with moderate value of saturation magnetization and coercivity were studied at room temperature with the help of vibrating sample magnetometer (VSM). The electromagnetic radiation (EMR) absorption properties were studied in the frequency range of 2-18 GHz by using Vector Network analyzer (VNA). The maximum EMR absorption of â26.52 dB was observed at a frequency of 5.79 GHz. The FTIR spectra confirm tetrahedral and octahedral sites in BaFe12O19 structure. The surface morphology was analyzed by scanning electron microscopy (SEM), which reveals that the particles are agglomerated into irregular shapes. Particle size was measured with transmission electron microscopy (TEM), which was in correlation with the already calculated size from x-ray diffraction (XRD) spectra.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Ali Bahadur, Aamer Saeed, Shahid Iqbal, Muhammad Shoaib, Ijaz Ahmad, Muhammad Saif ur Rahman, Muhammad Imran Bashir, Muhammad Yaseen, Wajid Hussain,