Drops deformation influence on the microwaves interaction with a magnetodielectric emulsion

IF 0.9 4区工程技术 Q4 ENGINEERING, CHEMICAL Journal of Microwave Power and Electromagnetic Energy Pub Date : 2022-10-31 DOI:10.1080/08327823.2022.2141043

S. Turkin, Yuri Dikansky, A. Zakinyan

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Abstract

Abstract Experimental and theoretical studies of the interaction of microwave radiation with a frequency of 8.2 GHz with magnetodielectric emulsions under the influence of an external magnetic field causing deformation of the emulsion dispersed phase droplets have been carried out. The values of the external magnetic field strength are such that no ferromagnetic resonance is observed in the system at a given radiation frequency. The studies were carried out when a rectangular waveguide was partially filled with a sample cell in the form of a thin plate. It is established that the deformation of magnetic droplets of the emulsion significantly affects the absorption of electromagnetic energy. The value of the droplet concentration at which the maximum response of the system is observed is determined. The features of the phenomenon of nonreciprocal phase shift, which have no analogue in solid-state magnetic materials, are found. To interpret the results obtained, a model of an ensemble of non-interacting isotropic superparamagnetic particles was used.

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降低变形对磁介电乳液微波相互作用的影响

摘要本文对8.2 GHz频率的微波辐射在外加磁场作用下与磁介质乳剂相互作用导致乳剂分散相液滴变形的实验和理论进行了研究。外部磁场强度的值使得在给定的辐射频率下，系统中没有观察到铁磁共振。该研究是在矩形波导部分填充薄板形式的样品细胞时进行的。结果表明，乳状液磁滴的变形对电磁能量的吸收有显著影响。确定了观察到系统最大响应的液滴浓度值。发现了在固态磁性材料中没有类似物的非互易相移现象的特征。为了解释得到的结果，使用了一个非相互作用的各向同性超顺磁粒子系综模型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Microwave Power and Electromagnetic Energy ENGINEERING, CHEMICAL-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

2.50

自引率

6.70%

发文量

期刊介绍： The Journal of the Microwave Power Energy (JMPEE) is a quarterly publication of the International Microwave Power Institute (IMPI), aimed to be one of the primary sources of the most reliable information in the arts and sciences of microwave and RF technology. JMPEE provides space to engineers and researchers for presenting papers about non-communication applications of microwave and RF, mostly industrial, scientific, medical and instrumentation. Topics include, but are not limited to: applications in materials science and nanotechnology, characterization of biological tissues, food industry applications, green chemistry, health and therapeutic applications, microwave chemistry, microwave processing of materials, soil remediation, and waste processing.