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Microstructure and composition engineering Yb single-filled CoSb_(3) for high thermoelectric and mechanical performances 被引量:5

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摘要 A broad tunability of the thermoelectric and mechanical properties of CoSb_(3) has been demonstrated by adjusting the composition with the addition of an increasing number of elements.However,such a strategy may negatively impact processing repeatability and composition control.In this work,singleelement-filled skutterudite is engineered to have high thermoelectric and mechanical performances.Increased Yb filling fraction is found to increase phonon scattering,whereas cryogenic grinding contributes additional microstructural scattering.A peak zT of 1.55 and an average zT of about 1.09,which is comparable to the reported results of multiple-filled SKDs,are realized by the combination of simple composition and microstructure engineering.Furthermore,the mechanical properties of Yb single-filled CoSb_(3) skutterudite are improved by manipulation of the microstructure through cryogenic grinding.These findings highlight the realistic prospect of producing high-performance thermoelectric materials with reduced compositional complexity.
出处 《Journal of Materiomics》 SCIE EI 2019年第4期702-710,共9页 无机材料学学报(英文)
基金 funded by Natural Science Foundation of China(Nos.51774096,51871053) Shanghai Committee of Science and Technology(Nos.16JC1401800,18JC1411200) supported by the NASA Science Missions Directorate under the Radioisotope Power Systems Program support from the National Science Foundation(DMREF-1333335 and DMREF-1729487).
作者简介 Corresponding author:Qihao Zhang,is currently a research associate at Shanghai Institute of Ceramics,Chinese Academy of Sciences(SICCAS).He received his Ph.D.from SICCAS under the advisory of Prof.Lidong Chen in 2018.His current research focuses on the development of advanced thermoelectric nanocomposites and design,fabrication and evaluation of thermoelectric power generation devices and systems.E-mail addresses:zhangqh@mail.sic.ac.cn;Corresponding author:Gerald Jeffrey Snyder,is a Professor of Materials Science and Engineering at Northwestern University in Evanston Illinois.His interests are focused on the materials physics and chemistry for thermoelectric engineering,such as band engineering,design of complex Zintl compounds and use of nanostructured composites.His interdisciplinary approach stems from studies of Solid State Chemistry at Cornell University and the Max Planck Institute for solid state research,Applied Physics at Stanford University and thermoelectric materials&device engineering at NASA/Jet Propulsion Laboratory and California Institute of Technology(Caltech).E-mail addresses:jeff.snyder@northwestern.edu;Corresponding author:Lianjun Wang,obtained his Ph.D.degree from Dalian University of Technology in 2002 and then worked as postdoctoral research fellow at Shanghai Institute of Ceramics,Chinese Academy of Sciences and University of Stockholm.He joined Donghua University as a professor in 2010.He has gained multiple talent supporting programs including New Century Talent Supporting Project by education ministry,Shanghai Science and Technology Development Funds,the Dawn Program of Shanghai Education,Shanghai outstanding technical leaders plan.He specializes in thermoelectric materials,sintering preparation and photoelectric properties of bulk functional glass,micro/nanostructured bulk materials and advanced ceramics.E-mail addresses:wanglj@dhu.edu.cn;Zhenxing Zhou,received his B.E.degree from Donghua University,China in 2012.He is currently studying for a Ph.D.degree in State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering at Donghua University.He is working on the processing of micro/nanostructured thermoelectric composites by high energetic milling,cryogenic grinding and SPS in order to improve the thermoelectric properties for high-performance power generation devices;Matthias T.Agne,received his Bachelor and Master degrees in Materials Science and Engineering from Drexel University in 2015,having worked with MAX phase ceramic materials under Professor Michel Barsoum.Now he is pursuing his PhD under the advisory of Professor G.Jeffrey Snyder at Northwestern University.His current research is concentrated in thermodynamics and materials physics,with applications to thermal transport,thermoelectric materials and measurements;Wan Jiang,is a Professor of Donghua University and Director of the Engineering Research Center of AGMT.He received his B.S.from Dalian University of Technology in China(1983)and Ph.D.from Tohoku University in Japan(1994).He gained the“Hundreds Talent Project”in Chinese Academy of Sciences in 1999 and National Science Fund for Distinguished Young Scholars in 2006.His research activities are focused on low cost and fast in-situ synthesis/sintering of nano-ceramic composites,thermoelectric materials and fabrication of functional glass by SPS。
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