Magnetic and microwave absorption properties of W-type nanoferrite in X and Ku band
| Autor: | F. Z. Mohammad, K. Ali, Haslina Arshad, A. Ijaz, M. Mudsar, J. J. Siddiqui |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Diffraction Materials science Reflection loss Analytical chemistry Crystal structure Coercivity Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Phase (matter) 0103 physical sciences Crystallite Electrical and Electronic Engineering Absorption (electromagnetic radiation) Microwave |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 30:2278-2284 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-018-0498-7 |
| Popis: | The W-type hexagonal nano ferrites (Ba0.8Al0.2Co0.9Zn1.1Fe19O27) were prepared by a modified sol–gel combustion method. The structural, morphological, magnetic and electromagnetic absorption properties were investigated, using different experimental techniques. The crystal structure, crystallite size and identification of phase were obtained from X-ray diffraction analysis. The SEM image revealed the spherical morphology of particles with nanosize dimensions. Moreover, the magnetic properties such as coercivity (Hc), saturation magnetization (Ms) and blocking temperature (TB) of prepared ferrite nanoparticles were obtained by (VSM). The hysteresis loop was measured at ± 20 kOe, which showed an increase in coercivity (Hc = 287 kOe) and decrease in saturation magnetization (MS). The reflection loss (RL) properties were measured as a function of frequency between 2 and 18 GHz. The RL curve showed 90% absorption, from 9.62 to 13.29 GHz (X-Band) and 12.8–18 GHz (Ku Band) at a coating thickness of 1 and 1.5 mm respectively. |
| Databáze: | OpenAIRE |
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