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Thermal-Conductivity Studies of Macro-porous Polymer-Derived SiOC Ceramics

文献类型：期刊论文

作者Qiu, L.1; Li, Y. M.2; Zheng, X. H.1; Zhu, J.1; Tang, D. W.1; Wu, J. Q.2,3; Xu, C. H.2
刊名INTERNATIONAL JOURNAL OF THERMOPHYSICS
出版日期2014
卷号35期号:1页码:76-89
关键词3 omega Technique Freestanding sensor Macro-porous Polymer derived SiOC ceramics Thermal conductivity
英文摘要A three-dimensional reticular macro-porous SiOC ceramics structure, made of spherical agglomerates, has been thermally characterized using a freestanding sensor-based method. The effective thermal conductivity of the macro-porous SiOC ceramics, including the effects of voids, is found to be to at room temperature, comparable with that of alumina aerogel or carbon aerogel. These results suggest that SiOC ceramics hold great promise as a thermal insulation material for use at high temperatures. The measured results further reveal that the effective thermal conductivity is limited by the low solid-phase volume fraction for the SiOC series processed at the same conditions. For SiOC ceramics processed under different pyrolysis temperatures, the contact condition between neighboring particles in the SiOC networks is another key factor influencing the effective thermal conductivity.
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Thermodynamics ; Chemistry, Physical ; Mechanics ; Physics, Applied
研究领域[WOS]Thermodynamics ; Chemistry ; Mechanics ; Physics
关键词[WOS]SILICON OXYCARBIDE GLASSES ; AEROGEL ; FABRICATION ; STABILITY ; MEDIA
收录类别SCI
语种英语
WOS记录号WOS:000331717300008
源URL[http://ir.etp.ac.cn/handle/311046/105995]  
专题工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Qiu, L.,Li, Y. M.,Zheng, X. H.,et al. Thermal-Conductivity Studies of Macro-porous Polymer-Derived SiOC Ceramics[J]. INTERNATIONAL JOURNAL OF THERMOPHYSICS,2014,35(1):76-89.
APA Qiu, L..,Li, Y. M..,Zheng, X. H..,Zhu, J..,Tang, D. W..,...&Xu, C. H..(2014).Thermal-Conductivity Studies of Macro-porous Polymer-Derived SiOC Ceramics.INTERNATIONAL JOURNAL OF THERMOPHYSICS,35(1),76-89.
MLA Qiu, L.,et al."Thermal-Conductivity Studies of Macro-porous Polymer-Derived SiOC Ceramics".INTERNATIONAL JOURNAL OF THERMOPHYSICS 35.1(2014):76-89.

入库方式： OAI收割

来源：工程热物理研究所

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