Magnetically active composites with relatively giant dielectric permittivity

IF 2.1 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Romanian Reports in Physics Pub Date : 2023-09-15 DOI:10.59277/romrepphys.2023.75.503
M. BUNOIU, G.-E. IACOBESCU, G. PASCU, L. CHIRIGIU, I. BICA
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Abstract

"Magnetically active composites based on silicone rubber, silicone oil, carbonyl microparticles, graphene nanopallets and fabric, as a reinforcing element, are manufactured. For a constant amount of carbonyl iron microparticles and silicone oil, and for different ratios between the amounts of silicone rubber and graphene nanopalets, three composite samples are prepared. Using the plane capacitor method, the relative permittivity of the composites is determined. It is shown that by using graphene nanopallets, composites with giant values of relative dielectric permittivity can be obtained and that the relative dielectric permittivity values are sensitive to the magnetic force induced by the static magnetic field superimposed on the medium-frequency electric field. Using the model of the dipolar magnetic approximation and elements of the theory of dielectrics in medium frequency electric fields, the mechanisms participating in the obtained effects are described."
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具有较大介电常数的磁活性复合材料
“我们制造了基于硅橡胶、硅油、羰基微粒、石墨烯纳米颗粒和织物作为增强元素的磁活性复合材料。以一定量的羰基铁微粒和硅油,以及硅橡胶和石墨烯纳米片的不同比例,制备了三种复合样品。采用平面电容法测定了复合材料的相对介电常数。结果表明,使用纳米石墨烯片可以得到具有较大相对介电常数的复合材料,并且相对介电常数值对叠加在中频电场上的静磁场所产生的磁场力敏感。利用偶极磁近似模型和中频电场中介电体理论的基本原理,描述了产生上述效应的机理。
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来源期刊
Romanian Reports in Physics
Romanian Reports in Physics 物理-物理:综合
CiteScore
4.20
自引率
29.60%
发文量
0
审稿时长
4-8 weeks
期刊介绍: Romanian Reports in Physics is a journal publishing physics contributions in the fields of: 1. Mathematical and General Physics 2. Nuclear Physics. Particle Physics. Astroparticle Physics 3. Atomic and Molecular Physics 4. Plasma Physics 5. Condensed Matter 6. Optics & Quantum Electronics 7. Biophysics & Medical Physics. Environmental Physics 8. Physical Methods and Instrumentation 9. Earth Physics
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