| 碳气凝胶的传热规律及其在防隔热中的应用 |
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| 引用本文： | 冯坚.碳气凝胶的传热规律及其在防隔热中的应用[J].宇航材料工艺,2012,42(2):1-6. |
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| 作者姓名： | 冯坚 |
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| 作者单位： | 国防科学技术大学航天与材料工程学院,新型陶瓷纤维及其复合材料重点实验室,长沙410073 |
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| 基金项目： | 国家自然科学基金(510021875,1172279);国防预研基金(9140C8203051003)资助 |
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| 摘 要： | 综述了碳气凝胶耐超高温隔热材料的传热特性,分析了传热各组成部分的大小及影响因素,提出作为防隔热应用的碳气凝胶应具有的微观结构.介绍了碳气凝胶的在防隔热应用方面的研究进展及其未来需要解决的问题.
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| 关 键 词： | 碳气凝胶 隔热材料 热导率 比消光系数 |
Thermal Transport in Carbon Aerogels and Their Applicationsin Thermal Protection System |
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| Feng Jian
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Feng Junzong
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Jiang Yonggang
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Zhang Changrui.Thermal Transport in Carbon Aerogels and Their Applicationsin Thermal Protection System[J].Aerospace Materials & Technology,2012,42(2):1-6. |
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| Authors: | Feng Jian Feng Junzong Jiang Yonggang Zhang Changrui |
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| Institution: | Feng Jian Feng Junzong Jiang Yonggang Zhang Changrui(Key Lab.of Advanced Ceramic Fibers and Composites,College of Aerospace and Materials Engineering, National University of Defense Technology,Changsha 410073) |
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| Abstract: | The researches on the thermal transport mechanism in carbon aerogels are reviewed.The different thermal conductivity components and the variables affected on them are analyzed.The structures that are suitable for using as thermal insulators are proposed.The researches on the applications of carbon aerogels in thermal protection system are reviewed,and the challenges are discussed. |
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| Keywords: | Carbon aerogels Thermal insulator Thermal conductivity Specific extinction coefficient |
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