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Enhanced insulation temperature and the reduced thermal conductivity of nanostructured ceramic coating systems
Liang LH(梁立红); Wei H; Chang XC; Xu W(许巍); Li XN(李宵娜); Wei YG(魏悦广); Liang, LH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2013-10
Volume65Pages:219-224
ISSN0017-9310
AbstractThe theoretical model on the size-dependent thermal conductivity of the nanograins and the composites, based on the phonon confinement and the boundary scattering effects, was developed to predict the 68% reduced thermal conductivity of the nanostructured ceramic coatings made of grains of 40-100 nm compared with the conventional ceramic coatings with micron-scale grains. In order to validate the model, the nanostructured zirconia layers and the corresponding conventional layers were sprayed on the same alloy matrixes, and the insulation temperatures were measured at different temperatures up to 1273 K. It was found that insulation temperature of the nanostructured ceramic systems enhanced about 200 K at most compared with that of the conventional ones. And the average enhancement of the insulation effect is in agreement with the theoretical prediction. The nanostructured ceramic coated systems provide the extending application in thermal barrier engineering, thermoelectric devices and other related applications.
KeywordNanoparticles Thermal Conductivity Size Effect Insulation Temperature
Subject Area固体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000324844800022
Funding OrganizationNational Basic Research Programs of China [2012CB937500, 2010CB631206]; NSFC of China [10802088, 10832008, 11023001, 51071164, 11021262, 91216108, 10932011]; opening fund of LNM
DepartmentLNM新型材料及结构的多尺度力学
Classification一类
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47496
Collection非线性力学国家重点实验室
Corresponding AuthorLiang, LH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Liang LH,Wei H,Chang XC,et al. Enhanced insulation temperature and the reduced thermal conductivity of nanostructured ceramic coating systems[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2013,65:219-224.
APA 梁立红.,Wei H.,Chang XC.,许巍.,李宵娜.,...&Liang, LH .(2013).Enhanced insulation temperature and the reduced thermal conductivity of nanostructured ceramic coating systems.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,65,219-224.
MLA 梁立红,et al."Enhanced insulation temperature and the reduced thermal conductivity of nanostructured ceramic coating systems".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 65(2013):219-224.
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