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http://dx.doi.org/10.6111/JKCGCT.2013.23.4.189

Fabrication of Mg3Sb2 and Mg3Bi2 Compounds and their composites by mechanical alloying  

Kim, In-Ki (Department of Materials Science and Engineering, Hanseo University)
Abstract
Single phase crystalline powders of $Mg_3Sb_2$ and $Mg_3Bi_2$ were prepared by mechanical alloying Mg, Sb and Bi metals with planetary ball milling for 24~48 h. The compositions of starting raw materials for single phase $Mg_3Sb_2$ and $Mg_3Bi_2$ were 3Mg : 1.8Sb and 3Mg : 1.6Bi, respectively. Two types of mechanically alloyed powders obtained were mixed at some ratios for the fabrication of $Mg_3Sb_2-Mg_3Bi_2$ composites and then hot pressed under uniaxial pressure of 70 MPa at 723 K for 1 h. The main phase of composites was a stable phase similar to $Mg_3Bi_2$ phase with a small amount of Bi phase. The distributions of Sb and Bi elements on EDS mapping images were discontinuous and their compositional contours were clear, which means that the hot pressed specimens were composites composed of two compounds of $Mg_3Sb_2$ and $Mg_3Bi_2$.
Keywords
Mechanical alloying; $Mg_3Sb_2$; $Mg_3Bi_2$; Planetary ball mill; Composites;
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1 M. Paliwal and I.H. Jung, "Computer coupling of phase diagrams and thermochemistry", CALPHAD 33 (2009) 744.   DOI   ScienceOn
2 C.L. Condron, S.M. Kauzlarich, F. Gascoin and G.J. Snyder, "Thermoelectric properties and microstructure of $Mg_3Sb_2$", J. Solid State Chem. 179 (2006) 2253.
3 H.X. Xin, X.Y. Qin, X.G. Zhu, J. Zhang and M.G. Kong, "Fabrication of nanocrystalline $Mg_3X_2$ (X = Bi, Sb) with supersaturated solid solubility by mechanical alloying", Mater. Sci. Eng. B 128 (2006) 192.   DOI   ScienceOn
4 C. Suryanarayana, E. Ivanov and V.V. Boldyrev, "The science and technology of mechanical alloying", Mater. Sci. Eng. A 304-306 (2001) 151.   DOI   ScienceOn
5 Y.S. Kwon, K.B. Gerasimov and S.K. Yoon, "Ball temperatures during mechanical alloying in planetary mills", J. Alloys and Compounds 346 (2002) 276.   DOI   ScienceOn
6 B.L. Mordike and T. Ebert, "Magnesium properties-applications-potential", Mater. Sci. & Eng. A302 (2001) 37.
7 J.E. Enderby and E.W. Collings, "The classification of liquid semiconductors", J. Non-Cryst. Solids 4 (1970) 161.   DOI   ScienceOn
8 W.S. Howells, A.C. Barnes and M. Hamiton, "Quasielastic neutron scattering and the dynamics of $Mg^{2+}$ in the fast ion and liquid phases of $Mg_3Bi_2$", Physica B 266 (1999) 97.   DOI   ScienceOn
9 T. Kajikawa, N. Kimura and T. Yokoyama, "Thermo-electric properties of intermetallic compounds: $Mg_3Bi_2$ and $Mg_3Sb_2$ for medium temperature range thermoelectricelements", Proc. the 22nd Int. Conf. on Thermoelectrics (2003) 305.
10 H.X. Xin, X.Y. Qin1, X.G. Zhu and Y. Liu, "Temperature dependence of electrical resistivity for nanocrystalline $Mg_{3+x}Sb_2$ prepared by mechanical alloying", J. Phys. D Appl. Phys. 39 (2006) 375.   DOI   ScienceOn
11 F. Ahmadpour, T. Kolodiazhnyi and Y. Mozharivsky, "Structural and physical properties of $Mg_{3-x}Zn_xSb_2$ (x = 0-1.34)", J. Solid State Chem. 180 (2007) 2427.
12 A.A. Nayeb-Hashemi and J.B. Clark, "The Bi-Mg (Bismuth-Mangnesium) system", Bulletin of Alloy Phase Diagrams 6(6) (1985) 528.   DOI
13 T. Kajikawa, N. Kimura and T. Yokoyama, "Thermoelectric properties of intermetallic compounds: $Mg_3Bi_2$ and $Mg_3Sb_2$ for medium temperature range thermoelectric elements", Proc. the 22nd Int. Conf. on Thermoelectrics (2003) 305.