naa a22 4500 510801854 CHVBK 20180411083359.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-012-2285-1 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2285-1 Design and Optimization of Gradient Interface of p -Type Ba0.3In0.3FeCo3Sb12/Bi0.48Sb1.52Te3 Thermoelectric Materials [Elektronische Daten] [Hong-Yu Zhou, Wen-Yu Zhao, Gang Liu, Hong Cheng, Qing-Jie Zhang] A series of p-type Ba0.3In0.3FeCo3Sb12/Bi0.48Sb1.52Te3 (FS/BT) thermoelectric (TE) materials containing one gradient layer (1GL) with FS/BT volume ratio of 5:5, 3GLs-I with 7:3-5:5-3:7, 3GLs-II with 3:7-5:5-7:3, and 3GLs-III with 3:7-5:5-3:7 from FS to BT were fabricated by a two-step spark plasma sintering method. The interface structure and mechanical properties of the p-type FS/BT TE materials were investigated in this work. Designing the GLs at the interface of FS and BT bulk TE materials can effectively relax the thermal stress induced by the large difference in thermal expansion coefficient and eliminate the macroscopic cracks that occur in FS/BT TE materials with no GL, hence resulting in a remarkable enhancement in the interface mechanical properties of the FS/BT TE materials with the GLs. The optimized gradient interface of the FS/BT TE materials is 3GLs-II with FS/BT volume ratio of 3:7-5:5-7:3. The highest flexural strength of the 3GLs-II sample reached 13.68MPa, increased by 116%. TMS, 2012 Ba0.3In0.3FeCo3Sb12/Bi0.48Sb1.52Te3 thermoelectric materials nationallicence gradient interface nationallicence microstructure nationallicence mechanical properties nationallicence Zhou Hong-Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut Zhao Wen-Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut Liu Gang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut Cheng Hong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut Zhang Qing-Jie State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1436-1442 0361-5235 42:7<1436 2013 42 11664 https://doi.org/10.1007/s11664-012-2285-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2285-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhou Hong-Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Zhao Wen-Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Liu Gang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Cheng Hong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Zhang Qing-Jie State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1436-1442 0361-5235 42:7<1436 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer