書誌事項
- タイトル別名
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- Electromagnetic Wave Absorption Characteristics, Electrical Resistivity and Micro Pore Structure of Woodceramics Prepared by Powder Method
- フンマツホウ ニ ヨリ サクセイ シタ ウッド セラミックス ノ デンジハ キュウシュウ トクセイ ト デンキ テイコウ オヨビ サイコウ コウゾウ
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Electromagnetic wave absorption characteristics, electrical resistivity and micro pore structure (specific surface area and micro pore size distribution) of the powder-method woodceramics, which were prepared by carbonizing the compacted mixtures of wood powder and 10-30 mass% of phenolic resin powder, were examined in comparison with those of the conventional MDF-method woodceramics, which were prepared by carbonizing the medium density fiber (MDF) boards impregnated with phenolic resin solution. The powder-method woodceramics carbonized at 650°C showed remarkable electromagnetic absorption characteristics as same as MDF-method woodceramics, namely the absorption values of 10%, 20% and 30% phenolic resin specimens were 35 dB at 11 GHz, 40 dB at 9 GHz and 50 dB at 2 GHz, respectively. These remarkable absorptions were mainly due to the suitably high electrical resistivities (101-103 Ωcm) of these woodceramics. The specific surface area of these woodceramics became to the maximum in the case of the carbonization at 700°C, namely 380 m2 · g-1 in the 30% phenolic resin powder specimen, 300 m2 · g-1 in the MDF specimen and 230 m2 · g-1 in the 10% phenolic resin powder specimen, respectively.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 52 (2), 124-130, 2005
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390282681284007040
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- NII論文ID
- 130000056172
- 30021673741
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 7255881
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可