کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10425098 | 906719 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High permittivity and microwave absorption of porous graphitic carbons encapsulating Fe nanoparticles
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High permittivity and microwave absorption of porous graphitic carbons encapsulating Fe nanoparticles High permittivity and microwave absorption of porous graphitic carbons encapsulating Fe nanoparticles](/preview/png/10425098.png)
چکیده انگلیسی
Porous graphitic carbons encapsulating Fe nanoparticles (PGCFs) were fabricated by infiltrating activated carbon (AC) with an iron salt and thereafter heat-treating the products in vacuum, and the electromagnetic parameters of the PGCF were investigated over 2-18Â GHz frequency. The results demonstrated that the formation of porous graphitic network encapsulating Fe nanoparticles endowed the composite a very high permittivity and dielectric loss at 2-18Â GHz. Return loss (RL) for the PGCF-based absorbers were investigated based on the measured electromagnetic parameters. A typical dual-layer absorber exhibited an excellent microwave absorption with a 43Â dB maximum absorption at 10Â GHz and a nearly 7Â GHz bandwidth for RLÂ <Â â20Â dB.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 72, Issue 13, 22 August 2012, Pages 1632-1636
Journal: Composites Science and Technology - Volume 72, Issue 13, 22 August 2012, Pages 1632-1636
نویسندگان
Qinglei Liu, Bin Cao, Chuanliang Feng, Wang Zhang, Shenmin Zhu, Di Zhang,