کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5458096 1516163 2018 8 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Hydrothermally synthesized Zn ferrite/multi-walled carbon nanotubes composite with enhanced electromagnetic-wave absorption performance
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Hydrothermally synthesized Zn ferrite/multi-walled carbon nanotubes composite with enhanced electromagnetic-wave absorption performance
چکیده انگلیسی
Zn ferrite/multi-walled carbon nanotubes (Zn ferrite/MWCNTs) composite were prepared by one-pot hydrothermal method. Their crystal structure, morphology, composition, magnetic properties, and electromagnetic-wave (EM-wave) absorption performance were measured by X-ray powder diffraction, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, vibrating sample magnetometry, and vector network analysis. Results indicated that Zn ferrite particles were distributed on MWCNTs surface with agglomeration, and MWCNTs crucially affected the magnetic properties of Zn ferrite/MWCNTs composite. Compared with Zn ferrite, Zn ferrite/MWCNTs composite showed low addition amount, low coating thickness, and enhanced EM-wave absorption performance. With 60 wt% addition amount and 1.5 mm coating thickness, the minimum reflection loss of Zn ferrite/MWCNTs composite was −42.6 dB at 12.1 GHz. The enhanced EM-wave absorption performance was mainly ascribed to the increased interfacial polarization and dielectric loss that resulting from the introduction of MWCNTs. The result illustrated that the introduction of MWCNTs into magnetic materials can enable the efficient design of excellent EM-wave absorbers with low addition amount and coating thickness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 731, 15 January 2018, Pages 745-752
نویسندگان
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