Morphological and magnetic properties of BaFe12O19 nanoferrite: A promising microwave absorbing material |
| |
| Affiliation: | 1. Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan;2. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 10049, PR China;3. Department of Chemistry, Allama Iqbal Open University, Islamabad, Pakistan;4. Clinical Research Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, PR China;5. Departments of Physics, Quaid-i-Azam University, Islamabad, 45320, Pakistan;1. Department of Materials Science and Engineering, Imam Hossein University, Tehran, Iran;2. Young Researchers and Elite Club, Science and Research Branch, Islamic Azad University, Tehran, Iran;3. Department of Applied Physics, Higher Institute for Applied Sciences and Technology, Damascus, Syria;1. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, South Korea;2. Department of Science Education, Chungbuk National University, Cheongju 360-763, South Korea;1. Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran;2. Department of Nanotechnology and Nanomaterial, University of Guilan, Rasht, Iran;3. Department of Materials Science and Engineering, Imam Hossein University, Tehran, Iran;4. Department of Applied Physics, Higher Institute for Applied Sciences and Technology, Damascus, Syria;1. SSPA “Scientific and Practical Materials Research Centre of NAS of Belarus”, P. Brovki str., 19, 220072 Minsk, Belarus;2. South Ural State University, Lenin Prospect, 76, 454080 Chelyabinsk, Russia;3. National University of Science and Technology MISiS, Leninsky Prospekt, 4, 119049 Moscow, Russia;4. Joint Institute for Nuclear Research, Joliot-Curie str., 6, 141980 Dubna, Russia;5. National University named after Taras Shevchenko, Vladimirskaya str., 64/13, 01601 Kiev, Ukraine |
| |
| 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 −26.52 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. |
| |
| Keywords: | Co-precipitation Microwave absorption Saturation magnetization Nanoferrites |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
