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碳纳米管装饰磁/陶纳米颗粒的结构,电和EMI屏蔽性能

Mahdieh Dehghani-Dashtabi¹, Hoda Hekmatara²

¹Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran.

Scientific reports

|January 8, 2025

概括

一种新的磁陶/导电纳米复合材料FeNi3-NiFe2O4-SiO2/MWCNT被开发用于电磁干扰 (EMI) 屏蔽. 这种材料有效地阻断了超过95%的入射波,证明了高的EMI屏蔽效率.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
电磁学电磁学电磁学电磁学

背景情况:

有害的电磁干扰 (EMI) 需要先进的屏蔽材料.
高总电磁屏蔽效率 (SE_T) 对于有效的保护至关重要.
纳米复合材料提供可调节的性能,以提高性能.

研究的目的:

为了合成和描述一种新的FeNi3-NiFe2O4-SiO2/MWCNT纳米复合材料.
为了研究合成材料的电磁干扰屏蔽特性.
评估纳米复合材料作为高性能屏蔽材料的潜力.

主要方法:

一个合成FeNi3-NiFe2O4-SiO2纳米粒子 (NP).
在多壁碳纳米管 (MWCNT) 侧墙上装饰NP.
对X频段和Ku频段的EMI屏蔽特性进行调查.

主要成果:

在整个频段中,FeNi3-NiFe2O4-SiO2/MWCNT纳米复合材料表现出25dB (>90%) 的高总屏蔽效率 (SE_T).
与单独的NP相比,纳米复合材料显示出优异的EMI屏蔽.
加入MWCNT增强了交流电导率,有助于改善屏蔽.

结论:

FeNi3-NiFe2O4-SiO2/MWCNT纳米复合材料是有效的EMI屏蔽的有希望的材料.
该材料可以防止超过95%的发生电磁波通过.
开发的纳米复合材料为需要强大的EMI保护的应用提供了可行的解决方案.

关键词:

在FeNi3的基础上.在 MWCNT 中,二氧化碳4O4是什么屏蔽的有效性屏蔽的有效性这就是SiO2二氧化.

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