کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5441697 1510677 2018 6 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Dielectric and magnetic properties of CoFe2O4 prepared by sol-gel auto-combustion method
ترجمه فارسی عنوان
خواص دی الکتریک و مغناطیسی CoFe2O4 توسط روش الکتروشیمیایی سل ژل تهیه شده
کلمات کلیدی
CoFe2O4؛ روش خودکار احتراق سل-ژل؛ فریت؛ خواص مغناطیسی؛
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

Cobalt ferrite powders were successfully synthesized by sol-gel auto-combustion method. Influence of sintering temperature on structural, magnetic and dielectric properties was studied. All the obtained samples are spinel ferrite with a cubic symmetry. As the sintering temperature increased from 900 °C to 1300 °C, the average grain size increased from 0.26 μm to 0.83 μm. The dielectric constant and loss tangent measurement showed strong temperature dependence at all frequencies. The maximum magnetization increased while the coercivity and remanent magnetization decreased with the increasing sintering temperature. The non-saturation at high fields may be related to the surface effects in CoFe2O4 samples. When sintered at 1300 °C, the sample showed a maximum magnetization value of ∼87.32 emu/g at room temperature. The highest value of coercivity of all the samples was 1368.33 Oe for the sample sintered at 900 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 98, February 2018, Pages 133-138
نویسندگان
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