炭素粉末を含むセラミックスパネルの電磁波吸収特性

書誌事項

タイトル別名
  • Electromagnetic Wave Absorption Characteristics of Ceramic Panels Containing Carbon Powders
  • タンソ フンマツ オ フクム セラミックス パネル ノ デンジハ キュウシュウ トクセイ

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抄録

Electromagnetic wave absorption characteristics and electrical resistivity of the 3∼5 mm thick ceramic specimens containing 14∼20 mass% of Bincho-charcoal powder and 4∼8 mass% of carbon black powder were measured by free space method and four probe method, respectively. The 3∼5 mm thick specimens containing 16% of Bincho-charcoal powder absorbed remarkably (about 30 dB) the electromagnetic waves of 4∼7 GHz. The 3∼5 mm thick specimens containing 5% of carbon black powder absorbed excellently (25∼40 dB) the electromagnetic waves of 4∼8 GHz. The electrical resistivities of the specimens containing16% of Bincho-charcoal powder and 5% of carbon black powder were 5×103 Ω·cm and 1×104 Ω·cm, respectively.

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