Incorporation of nanocarbon materials of various dimensions enhances the microwave absorption properties of Nd-doped barium ferrite

IF 3.4 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Mechanical and Materials Engineering Pub Date : 2024-12-23 DOI:10.1186/s40712-024-00201-8

Xiaohua Feng, Pengyu Li, Haopeng Yu, Chengwu Yu, Yi Liu, Hua Li

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引用次数: 0

Abstract

Physicochemical features of nano-carbon (NC) particles significantly influence the microwave absorption performances of NC-containing materials. Here, we report the development of rare earth neodymium (Nd)-doped barium ferrite (BaM) composites with carbon nanotubes (CNTs) and other NC materials (onion-like carbon and graphene oxide) to enhance microwave absorption. Nd_0.15-BaM composites containing 8% CNTs demonstrate a minimum reflection loss of − 123.12 dB at 7.97 GHz, with an effective absorption bandwidth of 5.46 GHz in the 2–18 GHz range. CNTs improve impedance matching and synergize with Nd_0.15-BaM, boosting absorption properties. The absorption performance is further tuned by adjusting the type and content of NC materials. These results highlight the potential of these composites for applications in wave absorption.

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不同尺寸纳米碳材料的掺入提高了掺钕铁氧体钡的微波吸收性能

纳米碳粒子的物理化学特性对含碳材料的微波吸收性能有显著影响。在这里，我们报道了稀土钕（Nd）掺杂钡铁氧体（BaM）复合材料与碳纳米管（CNTs）和其他NC材料（洋葱样碳和氧化石墨烯）的发展，以增强微波吸收。含有8% CNTs的Nd0.15-BaM复合材料在7.97 GHz处的反射损耗最小为−123.12 dB，在2-18 GHz范围内的有效吸收带宽为5.46 GHz。CNTs改善了阻抗匹配，并与Nd0.15-BaM协同作用，提高了吸收性能。通过调整NC材料的种类和含量，进一步调整吸收性能。这些结果突出了这些复合材料在波吸收方面的应用潜力。

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