Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61087
Title: Ultra rapid fabrication of p-type Li-doped Mg2Si0.4Sn0.6 synthesized by unique melt spinning method
Authors: Tang, X
Wang, G
Zheng, Y
Zhang, Y
Peng, K
Guo, L
Wang, S
Zeng, M
Dai, J 
Wang, G
Zhou, X
Issue Date: 2016
Source: Scripta materialia, 2016, v. 115, p. 52-56
Abstract: In this work, we successfully synthesized p-type Mg2(1-x)Li2xSi0.4Sn0.6 (x = 0.00, 0.01, 0.03, 0.07, 0.09) samples using a home-made melt spinning system combined with spark plasma sintering. Compared with the samples prepared by a traditional method, the processing time is reduced from typically several days to less than one hour. It is found that the electrical conductivity rises rapidly with the increase of Li content owing to the enhanced carrier density, while the Seebeck coefficient decreases concomitantly to some extent. Meanwhile, Li doping dramatically reduces the thermal conductivity, leading to an enhanced figure of merit ZT ∼ 0.58 at 760 K.
Keywords: Melt spinning
P-type Mg2(Si,Sn)
Thermoelectric properties
Publisher: Pergamon Press
Journal: Scripta materialia 
ISSN: 1359-6462
EISSN: 1872-8456
DOI: 10.1016/j.scriptamat.2015.12.031
Appears in Collections:Journal/Magazine Article

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