naa a22 4500 510802141 CHVBK 20180411083400.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-012-2286-0 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2286-0 Effects of Annealing on Microstructure and Thermoelectric Properties of Nanostructured CoSb3 [Elektronische Daten] [Peng-Fei Wen, Peng Li, Qing-Jie Zhang, Zhong-Wei Ruan, Li-Sheng Liu, Peng-Cheng Zhai] Nanocrystallization of thermoelectric materials is an effective way to reduce their thermal conductivity, but so far the thermal stability of nanostructured thermoelectric materials has been little studied. Effects of annealing treatment on the microstructure and the thermoelectric properties of nanostructured CoSb3 were investigated in this work. Samples with average grain size of 300nm were prepared by spark plasma sintering of high-energy ball-milled nanosized CoSb3 powders. The study shows that annealing has a very significant impact on the grain size of the samples. The grain size of the sample with 100h annealing is three times greater than before annealing. The major phase in the 150-h-annealed sample is still skutterudite, except for a trace amount of Sb phase. With increasing annealing time, the density reduces slightly. In addition, the power factor of the sample decreases, thus resulting in a decrease of the thermoelectric figure of merit. TMS, 2012 Nanostructured CoSb3 nationallicence annealing nationallicence thermoelectric properties nationallicence Wen Peng-Fei Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut Li Peng 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 Ruan Zhong-Wei Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut Liu Li-Sheng Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut Zhai Peng-Cheng Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1443-1448 0361-5235 42:7<1443 2013 42 11664 https://doi.org/10.1007/s11664-012-2286-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2286-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wen Peng-Fei Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Li Peng 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 700 1- Ruan Zhong-Wei Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Liu Li-Sheng Department of Engineering Structure and Mechanics, Wuhan University of Technology, 430070, Wuhan, China aut NATIONALLICENCE 700 1- Zhai Peng-Cheng Department of Engineering Structure and Mechanics, 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), 1443-1448 0361-5235 42:7<1443 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer