Abstract In this work, we report microwave absorption characteristics of Ba0·5Sr0·5(CoCr)xFe(12-2x)O19 hexaferrite prepared by a two route ceramic technique. The effect of Co2+-Cr3+content on structural, complex permittivity/permeability and reflection loss properties in Ba0·5Sr0·5Fe12O19 ferrite has been studied. X-ray diffraction confirmed the magnetoplumbite phase in the compositions. The dual absorption peaks were revealed in x = 0.8 composition with reflection loss of −52.09 dB at 8.78 GHz and 5.6 mm thickness. The absorption peaks were found to shift to low frequency with an increase in thickness. Composition x = 0.6 displayed the bandwidth to thickness ratio of 6.5 and a percentage bandwidth of 32.37% at 1.7 mm thickness and 10.13 GHz. The doping of Co2+ and Cr3+ reduced thickness, increased absorption, and bandwidth which is attributed to electromagnetic parameters, input impedance, quarter wavelength theory, and eddy current loss. The investigated performance parameters of prepared compositions indicate good scope for absorber applications.

中文翻译：

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用于微波吸收器应用的掺杂 Ba-Sr 六方铁氧体的开发：结构表征、可调厚度、吸收峰和电磁参数

摘要 在这项工作中，我们报告了通过两路陶瓷技术制备的 Ba0·5Sr0·5(CoCr)xFe(12-2x)O19 六铁氧体的微波吸收特性。研究了 Co2+-Cr3+ 含量对 Ba0·5Sr0·5Fe12O19 铁氧体的结构、复介电常数/磁导率和反射损耗特性的影响。X-射线衍射证实了组合物中的磁铅石相。双吸收峰显示在 x = 0.8 组合物中，在 8.78 GHz 和 5.6 mm 厚度下反射损耗为 -52.09 dB。发现吸收峰随着厚度的增加而向低频移动。成分 x = 0.6 在 1.7 mm 厚度和 10.13 GHz 下显示了 6.5 的带宽与厚度比和 32.37% 的带宽百分比。Co2+ 和 Cr3+ 的掺杂降低了厚度，增加了吸收，和带宽归因于电磁参数、输入阻抗、四分之一波长理论和涡流损耗。所制备组合物的研究性能参数表明吸收剂应用的良好范围。