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Quantitative Calculation of Thermal Conductivity of Tetragonal Phase and Grain Boundary on Zirconia Ceramics
Zhao, Wei-Wei1,2; Chen, Xiao-Xin3; Lin, Chu-Cheng2; Song, Xue-Mei2; Zeng, Yi2; Chang, Cheng-Kang1
2017
发表期刊Wuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN1000324X
卷号32期号:11页码:1177-1180
摘要The yttria-stabilized zirconia (YSZ) coatings have been widely used as thermal barrier coatings (TBCs). In order to investigate the factors that influenced the thermal conductivity of TBCs, bulk YSZ ceramics with different grain sizes were prepared via hot-pressing sintering methods under different annealing conditions. The quantitative effects of the phase and the grain size on the thermal conductivity were analyzed. Based on electron backscatter diffraction images (EBSD) of YSZ ceramics, the distribution of grain boundaries and tetragonal phase were obtained. And thermal conductivities of grain boundaries and tetragonal phase were calculated by finite element models and Fourier's equation. The thermal conductivities of grain boundaries and tetragonal phase are 2.65 W/(m·K) and 1.54 W/(m·K), respectively. The results reveal that the thermal conductivity of tetragonal phase is higher than that of the YSZ ceramic (2.31 W/(m·K)), while grain boundary's is lower than that of the YSZ ceramic. © 2017, Science Press. All right reserved.
DOI10.15541/jim20170046
EI入藏号20181304944964
EI主题词Thermal conductivity
EI分类号641.1 Thermodynamics - 804.2 Inorganic Compounds - 812.1 Ceramics - 921.6 Numerical Methods
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25719
专题中国科学院上海硅酸盐研究所
作者单位1.School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai; 200235, China;
2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
3.School of Material Science and Engineering, Jiangsu University, Zhenjiang; 212013, China
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GB/T 7714
Zhao, Wei-Wei,Chen, Xiao-Xin,Lin, Chu-Cheng,et al. Quantitative Calculation of Thermal Conductivity of Tetragonal Phase and Grain Boundary on Zirconia Ceramics[J]. Wuji Cailiao Xuebao/Journal of Inorganic Materials,2017,32(11):1177-1180.
APA Zhao, Wei-Wei,Chen, Xiao-Xin,Lin, Chu-Cheng,Song, Xue-Mei,Zeng, Yi,&Chang, Cheng-Kang.(2017).Quantitative Calculation of Thermal Conductivity of Tetragonal Phase and Grain Boundary on Zirconia Ceramics.Wuji Cailiao Xuebao/Journal of Inorganic Materials,32(11),1177-1180.
MLA Zhao, Wei-Wei,et al."Quantitative Calculation of Thermal Conductivity of Tetragonal Phase and Grain Boundary on Zirconia Ceramics".Wuji Cailiao Xuebao/Journal of Inorganic Materials 32.11(2017):1177-1180.
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