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- W2009999557 abstract "Mg2Si–Mg2Sn solid solutions are a promising class of thermoelectric materials. Mg2.2Si1−ySny−0.013Sb0.013 compounds with different Si/Sn ratios were prepared by B2O3 “flux” method followed by hot-pressing. The effect of Si/Sn ratio on the thermoelectric properties of the Mg2Si–Mg2Sn solid solutions at a fixed Sb doping level were measured in the temperature range 300–760 K. With the increase of Sn content (0.3≤y≤0.7), power factors are improved and lattice thermal conductivity decreased. Band convergence induced by Si/Sn ratio leads to enhanced effective mass and the materials parameter β which qualifies a kind of thermoelectric material is improved evidently. A maximum ZT of ~1.1 at ~760 K was achieved for the Mg2.2Si0.3Sn0.7–0.013Sb0.013 sample arising from a high power factor of ~4×10-3 W m−1 K−2 and a low lattice thermal conductivity of ~1.6 W m−1 K−1 at ~760 K." @default.
- W2009999557 created "2016-06-24" @default.
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- W2009999557 date "2014-12-01" @default.
- W2009999557 modified "2023-10-15" @default.
- W2009999557 title "Variations of thermoelectric properties of Mg 2.2 Si 1−y Sn y−0.013 Sb 0.013 materials with different Si/Sn ratios" @default.
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- W2009999557 doi "https://doi.org/10.1016/j.jssc.2014.08.026" @default.
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