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纯SiC-Ti₃SiC₂复合材料的电磁干扰屏蔽有效性由反应融透制造的复合材料

Mingjun Zhang¹, Zhijun Ma¹, Xueqin Pan¹

¹State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.

Materials (Basel, Switzerland)

|January 11, 2025

概括

制造了高性能碳化-碳化复合材料. 碳化含量的增加提高了电磁干扰屏蔽的有效性,在高级应用中达到62.1dB.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
固态化学固态化学

背景情况:

先进的材料对于电磁干扰 (EMI) 屏蔽至关重要.
碳化 (SiC) 和碳化 (Ti3SiC2) 是一个有前途的陶材料.
开发具有定制性质的复合材料对于有效的EMI屏蔽至关重要.

研究的目的:

用于制造具有不同Ti3SiC2含量的SiC-Ti3SiC2复合材料.
研究Ti3SiC2含量对电导率和EMI屏蔽效果的影响.
评估这些复合材料作为高性能EMI屏蔽材料的潜力.

主要方法:

两步反应性融透 (RMI) 技术. 这是一种两步反应性融透 (RMI) 技术.
凝造工艺以量身定制前型密度和碳形态.
复合材料属性的表征,包括X波段的电导率和EMI屏蔽效果.

主要成果:

成功制造了SiC-Ti3SiC2复合材料,具有受控的Ti3SiC2体积分.
电导率和EMI屏蔽效率随着Ti3SiC2含量增加而增加.
在X频段中,在31%体积Ti3SiC2下达到62.1dB的EMI屏蔽效率.

结论:

SiC-Ti3SiC2复合材料具有出色的EMI屏蔽性能.
由Ti3SiC2形成的导电网络通过转换电磁能来增强EMI屏蔽.
这些复合材料在需要高性能EMI屏蔽的应用中显示出巨大的潜力.

关键词:

如果SiCTi3SiC2 电导率是指电导的电导率.电磁干扰屏蔽的有效性电磁干扰屏蔽的有效性反应性融透反应性透

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