| Effect of synthesis temperature on structural and magnetic properties of Y-type Sr-hexaferrite nanoparticles |
| Paper ID : 2428-UFGNSM13-FULL (R1) |
| Authors: |
|
Alireza Nikzad *1, Ali Ghasemi2, Gholam reza gordani2 1Number 11 - Danesh Amooz Street - Beside Shahid Beheshti School - Yasouj - Iran 2Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Isfahan, Iran |
| Abstract: |
| In this study, Y-type Sr-hexaferrite nanoparticles with chemical composition of Sr2Co2Fe12O22 were synthesis by a co-precipitation method. The different temperatures from 800 to 900⁰C were employed to synthesis of green samples. The phase identification, morphology and magnetic properties of nanoparticles were characterized using X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM) and vibrating sample magnetometer (VSM), respectively. XRD spectra revealed that the high purity hexagonal Sr2Co2Fe12O22 single phase is formed at synthesis temperature of 900℃. It was also found that the crystallite size of nanoparticles are increased from 30nm to 45nm with an increase in synthesis temperature. SEM results showed that the particle size increases with increasing temperature and the morphology of particles is gradually turned from spherical to platelet shape. The VSM analysis showed that, with increasing of synthesis temperature the coercivity and saturation magnetization were decreased from 552.8 to 185.7 Oe and 65.22 to 59.79 emu/gr, respectively. Among them, the sample which synthesized at 900⁰C has the better structural and magnetic properties for application in multilayer chip inductive components. |
| Keywords: |
| Nanoparticles, Hexaferrite, Co-precipitation, Sintering temperature, Coercivity |
| Status : Paper Accepted (Poster Presentation) |
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