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Interfacial behaviors of p-type CeyFexCo4-xSb12/Nb thermoelectric joints
Chu, J; Gu, M; Liu, RH; Bai, SQ; Shi, X; Chen, LD
2020-07-05
Source PublicationFUNCTIONAL MATERIALS LETTERS
ISSN1793-6047
Issue5
SubtypeArticle
AbstractInterfacial diffusions and/or chemical reactions are one of the key issues for the reliability of CoSb3-based skutterudite thermoelectric (TE) joint, especially for the p-type joint, which limits the applications of TE devices. We investigate the interfacial evolution for p-type CeyFexCo4-xSb12/Nb joints (y = 0.5-1, x = 2, 3, 4) and combine the previous study on n-type Yb0.3Co4Sb12/Nb joint to demonstrate the effect of TE materials on the interfacial microstructure and interfacial resistivity. The reaction-diffusion kinetic analysis shows that the TE materials has little effect on chemical reactions but strongly influence the Sb diffusions. The low energy barrier of Sb diffusion leads to the absent phase decomposition of skutterudites in CeyFexCo4-xS12/Nb joints. The interfacial resistivity of CeyFexCo4-xS12/Nb joints is related with Fe content and the interfacial reaction layer (IRL) growth. In addition, since the interfacial reaction layer growth rate and interfacial resistivity of CeyFexCo4-xS12/Nb joints are both low, Nb is an adequate barrier layer candidate material.
DOI10.1142/S1793604720510200
WOS KeywordPOWER-GENERATION ; SKUTTERUDITES ; EVOLUTION ; PROGRESS
Language英语
WOS Research AreaMaterials Science
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27921
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Chu, J,Gu, M,Liu, RH,et al. Interfacial behaviors of p-type CeyFexCo4-xSb12/Nb thermoelectric joints[J]. FUNCTIONAL MATERIALS LETTERS,2020(5).
APA Chu, J,Gu, M,Liu, RH,Bai, SQ,Shi, X,&Chen, LD.(2020).Interfacial behaviors of p-type CeyFexCo4-xSb12/Nb thermoelectric joints.FUNCTIONAL MATERIALS LETTERS(5).
MLA Chu, J,et al."Interfacial behaviors of p-type CeyFexCo4-xSb12/Nb thermoelectric joints".FUNCTIONAL MATERIALS LETTERS .5(2020).
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