1 School of Materials Science and Engineering, Anyang Institute of Technology, Anyang 455000, Henan, China 2 Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China
Abstract: Mg2(Si, Sn)-based materials are a kind of environment-friendly thermoelectric materials with great application prospects.The single phase Mg2(Si0.4Sn0.6)Sb0.015 solid solution was prepared by melt spinning (MS) combined with spark plasma sintering (MS+SPS).By comparing with the same sample prepared by mechanical alloying (MA) combined with spark plasma sintering (MA+SPS), the effect of MS process on its microstructure and thermoelectric properties were studied.The results show that the solid solution thin belt obtained by MS is mainly composed of small particles of 200—500 nm.The obtained sinered dense buck material has obviously refined grains and uniformly distributed coherent nano precipitates.Compared with the samples prepared by MA+SPS process, the mobility of solid solution prepared by MS+SPS is significantly reduced, the resistivity increases slightly, the Seebeck coefficient increases significantly, and the thermal conductivity and lattice thermal conductivity decrease significantly.The thermoelectric properties of Mg2(Si0.4Sn0.6)Sb0.015 solid solution prepared by MS+SPS are significantly improved, and the maximum ZT value reached to 1.30 at 643 K.
1 Shi X L, Zou J, Chen Z G. Chemical Reviews, 2020, 120(15), 7399. 2 Mao J, Chen G, Ren Z. Nature Materials, 2021, 20(4), 454. 3 Li R, Chen S, Fan W, et al. Materials Review, 2018, 32(21), 3726 (in Chinese). 李蓉, 陈少平, 樊文浩, 等. 材料导报, 2018, 32(21), 3726. 4 Liang C, Dai P. Materials Review, 2015, 29(S2), 287 (in Chinese). 梁超龙, 代平. 材料导报, 2015, 29(S2), 287. 5 Klobes B, de Boor J, Alatas A, et al. Physical Review Materials, 2019, 3(2), 025404. 6 Shiojiri D, Iida T, Kakio H, et al. Journal of Alloys and Compounds, 2022, 891, 161968. 7 Bashir M B A, Said S M, Sabri M F M, et al. Renewable and Sustainable Energy Reviews, 2014, 37, 569. 8 Li J F, Liu W S, Zhao L D, et al. NPG Asia Materials, 2010, 2(4), 152. 9 Tang X F, Xie W J, Li H, et al. Applied Physics Letters, 2007, 90, 012102. 10 Zheng Y, Xie H, Zhang Q, et al. ACS Applied Materials & Interfaces, 2020, 12(32), 36186. 11 Tan H, Guo L, Wang G, et al. ACS Applied Materials & Interfaces, 2019, 11(26), 23337. 12 Tang D, Wang G W, Zheng Y, et al. Scripta Materialia, 2016, 115, 52. 13 Zaitsev V K, Fedorov M I, Gurieva E A, et al. Thermoelectrics handbook:macro to nano, CRC Press, USA, 2005, Chapter 29. 14 Biswas K, He J, Zhang Q, et al. Nature Chemistry, 2011, 3(2), 160. 15 Liu W, Tan X, Yin K, et al. Physical Review Letters, 2012, 108(16), 166601. 16 Sales B C, Mandrus D, Chakoumakos B C, et al. Physical Review B, 1997, 56(23), 15081. 17 Caillat T, Borshchevsky A, Fleurial J P. Journal of Applied Physics, 1996, 80(8), 4442. 18 Liu W, Chi H, Sun H, et al. Physical Chemistry Chemical Physics, 2014, 16(15), 6893. 19 Dasgupta T, Stiewe C, Boor J de, et al. Physica Status Solidi A-Applications and Materials Science, 2014, 211(6), 1250. 20 Boor J de, Gupta S, Kolb H, et al. Journal of Materials Chemistry C, 2015, 3(40), 104675. 21 Khan A U, Vlachos N, Kyratsi T. Scripta Materialia, 2013, 69(8), 606. 22 Du Z, Zhu T J, Zhao X B. Materials Letters, 2012, 66(1), 76. 23 Assahsahi I, Popescu B, Enculescu M, et al. Journal of Physics and Chemistry of Solids, 2022, 163, 110561. 24 Gao P, Lu X, Berkun I, et al. Applied Physics Letters, 2014, 105(20), 202104. 25 Polymeris G S, Vlachos N, Khan A U, et al. Acta Materialia, 2015, 83, 285. 26 Sankhla A, Kamila H, Kelm K, et al. Acta Materialia, 2020, 199, 85.
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2024, Vol. 38 
