拡張可能なマイクロスフェアーを用いた多孔質なオープンセル構造を持つマイクロセルラー炭化ケイ素セラミックスのプロセッシング(<ゲストエディターによる特集>有機-無機変換プロセス)

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概要

• 論文の詳細を見る

• A refined processing route for producing highly porous, open-cell, microcellular SiC ceramics by the expansion method using expandable microspheres has been demonstrated. The strategy adopted for making microcellular SiC ceramics involved the following steps: (i) fabricating preceramic foams by heating a mixture of polysiloxane, carbon black or phenol resin (used as a carbon source), Al_2O_3-Y_2O_3 (used as a sintering additive), expandable microspheres (used as sacrificial templates), and SiC (an optional inert filler); (ii) cross-linking the polysiloxane in the foamed body; (iii) transforming the polysiloxane and phenol resin by pyrolysis into silicon oxycarbide and carbon, respectively; and (iv) synthesizing SiC by carbothermal reduction. Effects of the carbon source, expandable microsphere content, and inert filler content on microstructure, porosity, and cell density were investigated in this study. By controlling the expandable microsphere and inert filler contents, it was possible to adjust the porosity within a range of 77% to 94%.

• 社団法人日本セラミックス協会の論文
• 2006-06-01

著者

• Kim Hai-doo

  Ceramic Materials Group Korea Institute Of Machinery And Materials

• Jang Doo-hee

  Department Of Materials Science And Engineering The University Of Seoul

• Kim Young-Wook

  Department of Materials Science and Engineering, the University of Seoul

• PARK Chul

  Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering

• KIM Young-Wook

  The University of Seoul, Department of Materials Science and Engineering

• SONG In-Hyuck

  Ceramic Materials Group, Korea Institute of Machinery and Materials

• Song In-hyuck

  Ceramic Materials Group Korea Institute Of Machinery And Materials

• Park Chul

  Microcellular Plastics Manufacturing Laboratory Department Of Mechanical And Industrial Engineering

• Park Chul

  Microcellular Plastics Manufacturing Laboratory Department Of Mechanical And Industrial Engineering

関連論文

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• Effect of submicron silicon carbide powder addition on the processing and strength of reaction-sintered mullite-silicon carbide composites
• Effect of filler addition on porosity and strength of polysiloxane-derived porous silicon carbide ceramics
• 高分子液体の泡立てと圧縮金型成形による多孔質シリコンオキシカーバイドセラミックスの作製
• Silicon carbide particle formation from carbon black : polymethylsilsesquioxane mixtures with melt pressing
• 空孔量を制御した多孔性コーディエライトセラミックスのプロセシング
• 拡張可能なマイクロスフェアーを用いた多孔質なオープンセル構造を持つマイクロセルラー炭化ケイ素セラミックスのプロセッシング(有機-無機変換プロセス)
• Nitridation Mechanism of Si Compacts Studied by Transmission Electron Microscopy
• Microstructural Characterization of GPSed-RBSN and GPSed-Si_3N_4 Ceramics

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