بررسی اثر آلایش نئودیمیم بر ویژگی‌های ساختاری و خواص مغناطیسی نانوذرات فریتی Ni0.7.7Zn0.3NdxFe2-xO4 سنتز شده به‌روش سل- ژل کمپلکس شونده

نویسندگان

دانشگاه صنعتی مالک‌اشتر، دانشکده مهندسی مواد، اصفهان، شاهین‌شهر، ایران، صندوق پستی 115-83145

چکیده

هدف این پژوهش، بررسی اثر آلایش مقادیر مختلف نئودیمیم بر ریخت، تغییرات فازی و خواص مغناطیسی نانوذرات فریتی (0/10، 0/07، 0/05، 0/03، 0/01، 0 = x) Ni0.7Zn0.3NdxFe2-xO4 سنتز شده به‌روش سل-ژل کمپلکس شونده است. در این روش، از تری‌اتانول آمین (TEA) به‌عنوان عامل ژل‌شونده و عامل کی‌لیت‌ کننده استفاده شد. مشخصه‌یابی نمونه‌ها با آنالیزهای پراش پرتو ایکس (XRD)، میکروسکوپ الکترونی روبشی گسیل میدانی (FESEM) و تفکیک انرژی پرتو ایکس (EDX) انجام شد. نتایج فازیابی نمونه‌ها نشان داد همه نمونه‌های سنتز شده دارای فاز فریت اسپینلی بودند. ارزیابی مغناطیسی نمونه‌ها نشان داد که نمونه آلایش شده با Nd0.01، ریخت شبه- کروی و اندازه ذرات در محدوده 60 نانومتر با بیشترین مغناطش اشباع emu/g50  و نیروی وادارندگی 103 Oe دارد.

کلیدواژه‌ها

عنوان مقاله [English]

Effect of Neodymium Dopping on Morphology, Phase and Magnetic Properties of Ni0.7Zn0.3NdxFe2-xO4 Ferrite Nanoparticles Synthesized by Complexing Sol-Gel Method

نویسندگان [English]

  • A. Ghasemi
  • M. R. Loghman Estarki
  • S. Torkian
  • G. R. Gordani
Department of Materials Engineering, Malek Ashtar University of Technology, P.O. Box 83145/115, Shahin Shahr, Isfahan, Iran.
چکیده [English]

The purpose of this study was to evaluate phase changes and magnetic properties of neodymium doped Ni0.7Zn0.3NdxFe2-xO4 (x = 0, 0.01, 0.03, 0.05, 0.07, 0.10) nanoparticles synthesized by complexing sol-gel method. In this method, triethanolamine (TEA) acted as both a gelling agent and a chelating agent. Samples were characterized by X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FESEM), and energy dispersive X-ray spectroscopy (EDX). XRD patterns of all synthesized samples revealed the formation of a spinel ferrite phase. Magnetic evaluation of the specimens showed that the Nd0.01 doped sample with a quasi-spherical morphology and particle size of about 60 nm has the highest saturation magnetization of 50 emu/g and coercive force of 103 Oe.

کلیدواژه‌ها [English]

  • Ferrite
  • Neodymium
  • Triethanolamine
  • Chelating agents
  • Ni-Zn ferrite

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مواد پیشرفته در مهندسی
دوره 39، شماره 2
شهریور 1399
صفحه 121-136

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