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A Short Review of The Latest Developments in The Science of Thermoelectric Materials

References [1] Zhi-Gang C., Guang H., Lei Y., Lina C., Jin Z: Nanostructured Thermoelectric Materials: Current Research and Future Challenge . Progress in Natural Science: Materials International 22/6. (2012) 535-549. https://doi.org/10.1016/j.pnsc.2012.11.011 [2] Index Mundi: Motor Gasoline Consumption by Country . 2012. [3] Guang Han, Ruizhi Zhang, Srinivas R. Popuri, Greer H. F., Reece M. J., Bos J. W. G., Wuzong Zhou, Knox A. R., Gregory D. H.: Large-Scale Surfactant-Free Synthesis of p-Type SnTe Nanoparticles for Thermoelectric

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Electric and Heat Conductions Across a Crack in a Thermoelectric Material

References [1] Disalvo, F. J. Thermoelectric Cooling and Power Generation. Science, 285 (1999), 703-706. [2] Yang, J. H., T. Caillat. Thermoelectric Materials for Space and Automotive Power Generation. MRS Bulletin, 31 (2006), 224229. [3] Narducci, D. Do We Really Need High Thermoelectric Figures of Merit? A Critical Appraisal to the Power Conversion Efficiency of Thermoelectric Materi- als. Appl. Phys. Lett., 99 (2011), 102-104. [4] Tritt, T. M., M. A. Subramanian. Thermoelectric Materials

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Thermoelectric properties of Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 skutterudites prepared by HPHT method

Abstract

N-type polycrystalline skutterudite compounds Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 with the bcc crystal structure were synthesized by high pressure and high temperature (HPHT) method. The synthesis time was sharply reduced to approximately half an hour. Typical microstructures connected with lattice deformations and dislocations were incorporated in the samples of Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 after HPHT. Electrical and thermal transport properties were meticulously researched in the temperature range of 300 K to 700 K. The Fe0.2Ni0.15Co3.65Sb12 sample shows a lower thermal conductivity than that of Ni0.15Co3.85Sb12. The dimensionless thermoelectric figure-of-merit (zT) reaches the maximal values of 0.52 and 0.35 at 600 K and 700 K respectively, for Ni0.15Co3.85Sb12 and Fe0.2Ni0.15Co3.65Sb12 samples synthesized at 1 GPa.

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Five-Sided Mechanism, Determination of Acceleration

Abstract

The aim of this paper is the presentation of the general form of the constraint equations necessary to calculate the accelerations occuring on a five sided spatial mechanism. Using these equations the computing of the accelerations for any part of any plain or spatial mechanism will be possible.

The constraint equations of the acceleration are obtained by computing the time derivatives of the velocity equations (which in general form are given by [1] and [2]) followed by the correspondent grouping of the unknowns.

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Fast preparation and thermoelectric properties of Zn4Sb3 by HPHT

Abstract

In this paper, crack-free bulk thermoelectric material Zn4Sb3 was prepared rapidly by high pressure and high temperature (HPHT) method. Near a single-phase Zn4Sb3 specimen was obtained using nominal stoichiometric powder mixtures, which were indexed by powder X-ray diffraction. The temperature-dependent thermoelectric properties including the Seebeck coefficient and electrical resistivity were studied. The maximum power factor of Zn4Sb3 specimen prepared by HPHT reaches 10.8 μW/(cmK2) at 637 K, which is comparable to the published data. The results show that the HPHT offers potential processing route to produce the thermoelectric material Zn4Sb3 quickly and effectively.

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Hydrothermal synthesis and thermoelectric properties of PbS

1 Introduction Thermoelectric materials capable of converting energy between heat and electricity are currently attracting significant attention as a part of a search for sustainable alternative energy sources [ 1 - 6 ]. The efficiency of thermoelectric devices is strongly associated with the dimensionless figure of merit ZT defined as: Z T = ( S 2 σ / κ ) T $$ZT = ({S^2}\sigma /\kappa )T$$ (1) where T is temperature [K], S is Seebeck coefficient, σ is electrical conductivity, and κ is total thermal conductivity. Therefore, a combination of a

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Optimization of supercooling effect in nanoscaled thermoelectric layers

heat transport equation for thermoelectric thin films, Applied Mathematics , vol. 4, pp. 22–27, 2013. 21. S. Zhao and M. J. Yedlin, A new iterative chebyshev spectral method for solving the elliptic equation ∇ · ( σ ∇ u ) = f , Journal of Computational Physics , vol. 113, pp. 251–223, 1994. 22. R. Peyret, Spectral Methods for Incompressible Viscous Flow . Springer-Verlag, 2002. 23. Q. Zhou, Z. Bian, and A. Shakouri, Pulsed cooling of inhomogeneous thermoelectric materials, Journal of Physics D: Applied Physics , vol. 40, no. 064308, pp. 4376

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Ab initio calculations of structural, elastic, electronic and thermodynamic properties of the cerium filled skutterudite CeRu4P12 under the effect of pressure

References [1] H eremans J., NanometerScale Thermoelectric Materials , in: BHUSHAN B. (Ed.), Springer Handbook on Nanotechnology , Springer, 2 nd ed, Heidelberg, 2007, p. 345. [2] H e J., T ritt T.M., ThermaltoElectrical Energy Conversion from the Nanotechnology Perspective , in: J avier G.M. (Ed.), Nanotechnology for the Energy Challenge , Wiley-VCH, Weinheim, 2010, p. 47. [3] N olas G.S., P oon S.J., K anatzidis M., MRS Bull. , 31 (2006), 199. [4] S ales B.C., Handbook on the Physics and Chemistry of Rare Earths , Elsevier

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Constitutive equations for heat conduction in nanosystems and nonequilibrium processes: an overview

, V. A. Cimmelli, and D. Jou, Thermoelectric effects and size dependency of the figure-of-merit in cylindrical nanowires, International Journal of Heat and Mass Transfer , vol. 57, pp. 109–116, 2013. 66. A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard-III, and J. R. Heath, Silicon nanowires as efficient thermoelectric materials, Nature , vol. 451, pp. 168–171, 2008. 67. G. Joshi, H. Lee, Y. Lan, X. Wang, G. Zhu, D. Wang, R. W. Gould, D. C. Cuff, M. Y. Tang, M. S. Dresselhaus, G. Chen, and Z. Ren, Enhanced Thermoelectric Figure

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