کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
7921694 1511752 2018 34 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of microwave absorption characteristics of (Polyaniline/NiZn ferrite) nanocomposites with different ferrite percentages
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Comparative study of microwave absorption characteristics of (Polyaniline/NiZn ferrite) nanocomposites with different ferrite percentages
چکیده انگلیسی
We present the preparation of polyaniline/Ni0.5 Zn0.5Fe2O4 (PANI/NiZn ferrite) nanocomposite. The preparation process consists of two steps: First, the ferrite is synthesized by self-combustion technique using sucrose as fuel. Then, the process is continued by in-situ chemical oxidative polymerization of aniline in the presence of the ferrite. Three different weight ratios of PANI/NiZn ferrite (1:2, 1:1, and 2:1) are prepared and structurally characterized by SEM, XRD, FT-IR and UV-vis spectroscopy. The functional characterization is performed by measuring the dc-conductivity, and microwave absorption characteristics in the range (8-12 GHz). XRD patterns prove the formation of the spinel ferrite, while SEM analysis indicates that the change in PANI/NiZn ferrite ratio has an effect on the morphology, which eventually influences the microwave absorption characteristics of the composite. A maximum reflection loss of −39.56 dB at 11.0 GHz with a matching thickness of 2.5 mm and a bandwidth of 3.0 GHz is obtained for PANI/NiZn ferrite having a weight ratio of 1:1 with only 25%w/w load in paraffin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 211, 1 June 2018, Pages 79-87
نویسندگان
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