【摘要】 对短碳纤维石墨混凝土的电磁屏蔽性能进行了研究,分析了短碳纤维和石墨的含量对混凝土低频电磁屏蔽效能的影响,探讨了短碳纤维的加入对石墨混凝土电磁屏蔽性能的影响机理,为设计高性能低频电磁屏蔽混凝土提供了依据。在1MHz～1.8GHz低频区域,短碳纤维石墨混凝土的最大电磁屏蔽值达到8.5dB。更多还原

【Abstract】 The electromagnetic shielding properties of short carbon fibers and graphite concrete were investigated, and the influence for the contents of the short carbon fibers and graphite on the electromagnetic shielding effectiveness of the concrete in low frequency was studied. The mechanism causing the influence of the short carbon fibers adulteration on the electromagnetic shielding effectiveness of the graphite concrete at low frequency was investigated. The results of the investigation provide the basis for further designing and producing of high-powered electromagnetic shielding concrete in low frequency. The maximum electromagnetic shielding effectiveness up to 8.5 dB in a low frequency range of 1 MHz—1.8 GHz is obtained.更多还原