کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7991652 | 1516143 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave absorption properties of SrxBa3-xCo2Fe24O41 hexaferrites in the range of 0.1-18â¯GHz
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
SrxBa3-xCo2Fe24O41 Z-type hexaferrites have been prepared by the citric acid sol-gel method, and the structural and electromagnetic properties have been investigated in detail. The results showed that single-phase Z-type hexaferrites were observed, and all samples exhibited excellent soft magnetic properties. For the sample with xâ¯=â¯1.5, a high resonant frequency frâ¯=â¯3.50â¯GHz and initial permeability μâ²â¯=â¯2.76â¯at 100â¯MHz was obtained. The calculated frequency dependence spectrum of the reflection loss (RL) showed a largest absorbing value of â48.5â¯dBâ¯at 17.6â¯GHz with a thickness of 5.0â¯mm. With the increasing thickness t, two local minimum RL values were observed from the RL-t curve. One was â43.6â¯dBâ¯atâ¯tâ¯=â¯4.3â¯mm and the other was â45.8â¯dBâ¯atâ¯tâ¯=â¯2.8â¯mm. The dependence of percentage bandwidth WP on thickness t was studied. As t increasing, WP increased firstly and then slowly decreased, reaching the maximum value of 96.1% at tâ¯=â¯3.3â¯mm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 751, 30 June 2018, Pages 80-85
Journal: Journal of Alloys and Compounds - Volume 751, 30 June 2018, Pages 80-85
نویسندگان
Dangwei Guo, Wenwen Kong, Juanjuan Feng, Xiling Li, Xiaolong Fan,