Preparation, Structural and Magnetic Behavior of Sr(AlCr)xFe(12-2x) O19 Hexagonal Ferrites

Journal of Applied Chemical Research

دوره 18، شماره 1، فروردین 2024، صفحه 60-71   

نوع مقاله: Original Article

نویسندگان

Mahboobeh Alimoradi¹؛ Mohammad Yousefi^{* 2}؛ Babak Sadeghi³؛ Mostafa M.Amini⁴؛ Alireza Abbasi⁵

¹Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran

²Department of Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences,Islamic Azad University, Tehran, Iran

³Department of Chemistry, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran

⁴Department of Chemistry, Shahid Beheshti University, G.C., Tehran, Iran

⁵School of Chemistry, College of Science,University of Tehran, Tehran, Iran

چکیده

In this investigation, strontium hexaferrite nanocomposites co-doped with aluminum and chromium were prepared Sr(AlCr)xFe(12-2x)O19 with x different amounts (x= 0, 0.2, 0.4, 0.6 and 0.8), were synthesized. The magnetic nanocomposites have been prepared by simple sol-gel auto-combustion method. The morphology and structure of nano-samples were determined by FTIR, XRD and FESEM . The results of the XRD pattern confirmed P63/mmc space group and the single phase of the synthesized samples. The crystal size of the prepared samples decreases with increasing Al and Cr.
The magnetic properties of these compounds are determined by the VSM. Magnetic properties (Mr, Ms and Hc) were measured. The result showed that Mr and Ms decrease with the increase of Al and Cr.

کلیدواژه‌ها

Nano composite؛ M-type hexaferrite؛ Sol-gel processes؛ Magnetic properties. 

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