کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1627785 1516458 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of nanocrystalline Ba(CoxZn1−x)2Fe16O27 by sol–gel auto-combustion method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Synthesis of nanocrystalline Ba(CoxZn1−x)2Fe16O27 by sol–gel auto-combustion method
چکیده انگلیسی

The synthesis of nanocrystalline W-type hexaferrites Ba(CoxZn1−x)2Fe16O27 powders by sol–gel auto-combustion method has been investigated. The thermal decomposition process of dried gel was studied by thermogravimetry (TG), differential thermal analysis (DTA) and infrared spectra (IR). The structural and magnetic properties of resultant particles were investigated by X-ray diffraction (XRD), transmission electron microscope (TEM), and vibrating sample magnetometer (VSM). The results reveal that the dried gel exhibits auto-combustion behavior. After combustion, pure nanocrystalline W-type hexaferrite phase starts to appear at the calcination temperature of 800 °C. The crystallinity and the grain size increase at higher temperature. The saturation magnetization and coercivity clearly depend on calcination temperature and Co content X.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 415, Issues 1–2, 18 May 2006, Pages 204–208
نویسندگان
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