Structural, magnetic, and microwave absorption properties of SrCexFe12-xO19/PVP composites
Source abstract
Abstract
Ce-substituted strontium hexagonal M-type SrCexFe12-xO19 ferrites (x = 0.0, 0.03, 0.05, 0.07, and 0.1) and various concentrations of poly(N-vinilpyrrolidone) (PVP) polymer were prepared by citrate sol-gel auto-combustion route, and their structural and magnetic properties were studied. The Fourier transform infrared spectroscopy (FT-IR) revealed bands at 437, 549, and 598 cm−1, related to the stretching vibrating bonds of Fe-O. The X-ray diffraction analysis (XRD) showed that in all samples, the SrFe12O9 phase is completely formed, and the peaks are taken with the standard card (JCPDS 01-084-1531) correspond to the type of strontium hexaferrite with the P63/mmc space group. Field emission scanning electron microscopy (FESEM) analysis revealed the hexagonal like the shape of all samples. Vibrating sample magnetometer (VSM) results showed ferromagnetic nature for all the specimens. By increasing the dopants content, coercivity (Hc) and saturation magnetization (Ms) erratically changed but Hc decreased with increasing PVP amount. The complex permittivity, complex permeability and microwave absorption properties of the resulting powder were measured in the range of 8–13 GHz.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Electromagnetic wave absorption materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran;
Department of Chemistry, College of Basic Science, Yadegar-e-Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran;
Department of Biology, College of Basic Science, Yadegar-e-Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran
References (25)
Show source-provided references
1. 10.1016/j.jmmm.2016.12.04710.1016/j.jmmm.2016.12.047 ↗
2. Ali I · J Magn Mater · 2013 · 550 · 564
3. 10.1016/j.jallcom.2009.07.14010.1016/j.jallcom.2009.07.140 ↗
4. 10.1016/j.ceramint.2015.12.13010.1016/j.ceramint.2015.12.130 ↗
5. 10.1007/s10948-017-4314-z10.1007/s10948-017-4314-z ↗
6. 10.1016/j.jmmm.2011.09.02310.1016/j.jmmm.2011.09.023 ↗
7. 10.3390/ceramics201001010.3390/ceramics2010010 ↗
8. 10.1080/15533174.2012.68015010.1080/15533174.2012.680150 ↗
9. 10.1016/j.jmmm.2009.12.01310.1016/j.jmmm.2009.12.013 ↗
10. 10.13168/cs.2016.000510.13168/cs.2016.0005 ↗
11. 10.1016/j.jallcom.2010.02.00210.1016/j.jallcom.2010.02.002 ↗
12. Jing P · Sci Rep · 2015
13. 10.1016/j.ceramint.2014.11.12510.1016/j.ceramint.2014.11.125 ↗
14. 10.1016/j.materresbull.2014.11.04310.1016/j.materresbull.2014.11.043 ↗
15. 10.1016/j.jmmm.2015.01.05010.1016/j.jmmm.2015.01.050 ↗
16. 10.1016/j.jmmm.2015.01.01910.1016/j.jmmm.2015.01.019 ↗
17. 10.1007/s13538-016-0408-510.1007/s13538-016-0408-5 ↗
18. 10.1134/S107042721702021510.1134/S1070427217020215 ↗
19. Mosleh Z · Structural, magnetic, and microwave absorption properties of CE-doped barium hexaferrite · 2015 · 397 · 101
20. 10.1016/j.jmmm.2014.10.16610.1016/j.jmmm.2014.10.166 ↗
21. 10.1016/j.ceramint.2018.08.01410.1016/j.ceramint.2018.08.014 ↗
22. 10.1007/s10854-018-0387-010.1007/s10854-018-0387-0 ↗
23. 10.1016/j.jmmm.2016.08.06610.1016/j.jmmm.2016.08.066 ↗
24. 10.1016/j.jmmm.2018.10.07610.1016/j.jmmm.2018.10.076 ↗
25. 10.1016/j.ceramint.2018.09.19010.1016/j.ceramint.2018.09.190 ↗