Electromagnetic interference shielding performance of nano-structure pyrolytic carbon cement composite

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-26 DOI:10.1016/j.matlet.2025.138465

N.K .Karthikeyan, S. Elavenil

引用次数: 0

Abstract

This article comprehensively investigated on the advantage of using Nanostructure Pyrolytic Carbon (NSPC) to develop an electromagnetic interference (EMI) shielding material. The composite composed of a cement matrix with NSPC particle as nano-filler and silica fume (SF) as dispersing material. This study investigated the effect of NSPC particles on electrical resistivity and EMI shielding of cement paste matrix. The experimental results revealed that the dispersion of NSPC particles reduced electrical resistivity to 4953 Ω.cm that reduced two orders of magnitude. NSPC composites (3 wt%) have maximum and average electromagnetic shielding effectiveness of 60.08 dB and 52.61 dB with the highest frequency range for SE > 50 is 9.6–12 GHz. Thus, NSPC particles will be a paradigm shift in material science to develop EMI shielding composites.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive