書誌事項
- タイトル別名
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- Development of Porous Silicon Nitride with Tailor-Made Pore Structure for Bio-Filter: I. Search of Sintering Aids
- バイオフィルター用テーラーメイド細孔構造を有する窒化ケイ素多孔体の開発(1)焼給助剤の探索
- バイオフィルターヨウ テーラーメイドサイコウ コウゾウ オ ユウスル チッカ ケイソ タコウタイ ノ カイハツ 1 ショウキュウジョザイ ノ タンサク
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抄録
In order to develop porous silicon nitride ceramics with tailor-made pore structure for "Bio-filter", suitable sintering aids were investigated. They must inhibit densification while promoting the α-β transformation to develop the fibrous β-Si3N4 crystals that would be essential for high toughness. The conventional technique for developing porous Si3N4 using a removable substance such as starch gave much lower porosity than the volume fraction of starch when MgO was used as a sintering aid. It was found that BaCO3 met the necessary conditions, probably because the decomposition temperature was as high as the liquidus temperature, and the internal CO2 pressure effectively inhibited the densification while promoting the phase transformation. The addition of 7 mol% as BaO gave about 44% of porosity at a sintering temperature as high as 1850°C. It was observed that the porous body consisted of interlocked fibrous β-Si3N4 crystals with sub-micrometer pore sizes.
収録刊行物
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- 資源と素材
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資源と素材 124 (4/5), 245-248, 2008
一般社団法人 資源・素材学会
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詳細情報 詳細情報について
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- CRID
- 1390282680251923712
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- NII論文ID
- 10021121513
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- NII書誌ID
- AA12188381
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- COI
- 1:CAS:528:DC%2BD1cXntVyisrs%3D
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- ISSN
- 18840450
- 18816118
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- NDL書誌ID
- 9533578
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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
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可