IMR OpenIR
Flexible SiC nanowire aerogel with excellent thermal insulation properties
Liang, Xianpeng1,2; Shao, Zhuojie1,2; Wu, Zhen1; Wang, Jingyang1
Corresponding AuthorWang, Jingyang(jywang@imr.ac.cn)
2022-08-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume48Issue:15Pages:22172-22178
AbstractAerogels are excellent thermal insulation materials with extremely low thermal conductivity. However, the practical applications of traditional oxide aerogels, such as SiO2 and Al2O3 aerogels, are limited by the disadvantages of easy sintering and intrinsic brittleness. SiC is a good candidate for new aerogel due to its superior stability and good properties from room to high temperatures. However, it is generally supposed that SiC cannot be employed as thermal insulation material because of its high intrinsic thermal conductivity. We herein developed SiC nanowire aerogel with quite low thermal conductivity using freeze-drying method. The fabricated SiC nanowire aerogel exhibits ultra-high porosity (-99.5%), excellent high-temperature stability (-1700 degrees C), extremely low thermal conductivity (0.035 W/(m center dot K)) and good compressive flexibility. The low thermal conductivity is resulted from ultra-high porosity and multi-level nanostructures. Flexible compression behavior is attributed to the capability of moving and buckling of SiC nanowires, originating from both ultra-high porosity and strong connection between nanowires. This exploration highlights the flexible SiC nanowire aerogel as a promising high temperature thermal insulation material.
KeywordSiC Nanowire aerogel Freeze-drying High temperature resistance Flexible Thermal insulation material
Funding OrganizationKey Research Program of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program
DOI10.1016/j.ceramint.2022.04.218
Indexed BySCI
Language英语
Funding ProjectKey Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-2] ; Liaoning Revitalization Talents Program[XLYC2002018]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000818438800003
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174925
Collection中国科学院金属研究所
Corresponding AuthorWang, Jingyang
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Liang, Xianpeng,Shao, Zhuojie,Wu, Zhen,et al. Flexible SiC nanowire aerogel with excellent thermal insulation properties[J]. CERAMICS INTERNATIONAL,2022,48(15):22172-22178.
APA Liang, Xianpeng,Shao, Zhuojie,Wu, Zhen,&Wang, Jingyang.(2022).Flexible SiC nanowire aerogel with excellent thermal insulation properties.CERAMICS INTERNATIONAL,48(15),22172-22178.
MLA Liang, Xianpeng,et al."Flexible SiC nanowire aerogel with excellent thermal insulation properties".CERAMICS INTERNATIONAL 48.15(2022):22172-22178.
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