کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1612171 | 1516305 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic and microwave absorption properties of BaMnxCo1âxTiFe10O19
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
For turning the magnetic resonance frequency and bandwidth of the reflection loss, different amounts of manganese (Mn) were incorporated into the BaCoTiFe10O19 for the substitution of cobalt (Co), then the BaMnxCo1âxTiFe10O19 was obtained via the solid-state reaction method. Subsequently, the effect of the doping Mn2+ on microwave absorption performances was detailedly studied in a frequency range from 2 to 18 GHz. The crystal volume expanded with increasing Mn2+ substitution as confirmed by X-ray diffraction results. No significant morphology change could be found in the scanning electron microscope images when Co2+ was partially substituted by Mn2+, but the coercivity and remanent magnetization raised as Mn2+ increased. The complex permittivity and permeability were collected by the vector net-analyzer and the absorbing properties were calculated according to transmission theory. The absorption peak shifted to higher frequencies with the substitution. The maximum loss value of â30.5 dB at 13.4 GHz was observed for the x = 0.6 sample. Based on the magnetic and microwave measurements, BaMnxCo1âxTiFe10O19 may be a good candidate for electromagnetic compatibility and other practical applications at high frequencies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 588, 5 March 2014, Pages 212-216
Journal: Journal of Alloys and Compounds - Volume 588, 5 March 2014, Pages 212-216
نویسندگان
Lin Wang, Hongtao Yu, Xiaohu Ren, Guangliang Xu,