https://scholars.lib.ntu.edu.tw/handle/123456789/409838
標題: | Construction and control of 3D porous structure based on vapor deposition on sublimation solids | 作者: | Tung H.-Y. Sun T.-P. Sun H.-Y. Guan Z.-Y. Hu S.-K. Chao L. HSIEN-YEH CHEN |
關鍵字: | 3D;Material fabrication;Porous structure;Sublimation;Vapor deposition | 公開日期: | 2017 | 卷: | 7 | 起(迄)頁: | 77-81 | 來源出版物: | Applied Materials Today | 摘要: | Three-dimensional porous structures are constructed via vapor deposition onto a sublimating solid template. Construction upon deposition of vapor-phase material occurs at a dynamic vapor¡Vsolid interface and is directed by the solid surface vanishing by sublimation. A proof-of-concept demonstration showed vapor depositions of poly-para-xylylenes (PPXs) on sublimating templates, including ice and mixtures with ethanol and hexane. The material construction macroscopically produces a replica architecture of the parent template. Characteristics of the pore structures are formed during the construction process as a result of the gas vapor and the space that is vacated by sublimation, thus enabling control of the porosity through regulation of the sublimation speed and/or the thermodynamic properties of the templates. The technology introduced herein provides a novel approach for 3D porous material manufacturing and overturns the notion that vapor deposition necessarily forms dense thin films on substrates. ? 2017 Elsevier Ltd |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409838 | ISSN: | 23529407 | DOI: | 10.1016/j.apmt.2016.12.005 |
顯示於: | 化學工程學系 |
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