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多孔質複合材料の熱膨張挙動に及ぼす湿度の効果
https://jaxa.repo.nii.ac.jp/records/21548
https://jaxa.repo.nii.ac.jp/records/215484ad30e4f-146c-4336-8c21-9a42e559ae69
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 多孔質複合材料の熱膨張挙動に及ぼす湿度の効果 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 多孔質複合材料 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 熱膨張係数 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 吸湿効果 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ボイド分散法 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 3次元強化複合材料 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | エポキシ樹脂 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ガラスコーティング | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 熱膨張挙動 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 吸湿挙動 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 吸湿防止 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CTE | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | porous composite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | thermal expansion coefficient | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | humidity effect | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | void dispersion method | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | three dimension reinforced composite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | epoxy resin | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | glass coating | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | thermal expansion behavior | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | water absorption behavior | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | humidity resistance | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | CTE | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Effect of humidity on thermal expansion behavior of porous composites | |||||
著者 |
八田, 博志
× 八田, 博志× 竹井, 多賀子× 吉原, 芳男× 澤田, 豊× Hatta, Hiroshi× Takei, Takako× Yoshihara, Yoshio× Sawada, Yutaka |
|||||
書誌情報 |
材料システム en : Materials system 巻 13, p. 117-125, 発行日 1994-11-30 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 最近の論文で著者らは、複合材料の熱膨張係数(CTE)をより広範に制御する「ボイド分散法」を提案した。この方法で、複合材料のマトリックス中に微小ボイドを導入し、熱膨張係数を低下させる強化材-微小ボイド相互作用効果を利用した。しかし、微小ボイドの導入は接触面を弱め、空気中の水分に影響されやすくなるなど、様々な欠点が生じる。このように本研究では多孔質複合材料に及ぼす空気中水分の影響を検討した。典型的多孔質複合材料として、スケルトン状(多孔質)3次元複合材料を用いた。マトリックスにボイドを導入したことで、より広い比表面積をもち、マトリックス中の水分がより拡散した。水分吸収の影響を明らかにする主な現象は、低温度領域および低ガラス転移温度での高いCTEであることがわかった。水分吸収をふせぐ方法として、多孔質複合材料の表面にガラスをコーティングすることを最後に検討し、このコーティングが低湿度環境下で有効であることを示した。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | In recent paper authors proposed 'void dispersion method' to control more widely Thermal Expansion Coefficients (CTEs) of composites materials. This method introduces microvoids in the matrix of composites and utilizes an interaction effect between the reinforcement and the microvoids which yields reduction of thermal expansion coefficients. However the introduction of microvoids gives rise to various draw-backs, such as weakening interfaces and becoming sensitive to humidity in the air. Thus in this paper, effect of humidity in the air on porous composites has been examined. A skeletonized three-dimensional composites were used as a typical porous composite. It was shown that the introduction of voids in the matrix leaded to wider specific surface and resulted in higher diffusion of water in the matrix. Main phenomena manifesting the water absorption effect were shown to be higher CTE in low temperature region and low glass transition temperature. As a measure to prevent the water absorption, glass coating on the surface of the porous composite was finally examined and it is shown to be effective under the low humidity environment. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0286-6013 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: DS0009406015 |