Al-Sb-Y (Aluminum-Antimony-Yttrium)

Abstract

In the previous work on this ternary system, two isothermal sections have been reported: at 500°C by [1971Mur] and at 527°C by [2003Zen]. The latter study was reviewed briefly by [2008Rag]. Recently, [2009Zha] reported a thermodynamic assessment of this system. Binary SystemsThe Al-Sb phase diagram depicts the stoichiometric compound AlSb (B3, Sphalerite-type cubic Computed Ternary Phase Equilibria[2009Zha] described the liquid, fcc, bcc, cph and rhombohedral phases as substitutional solutions. The binary compounds were treated as stoichiometric phases. The solubility of Al up to 27 at.% in Sb 3 Y 5 was taken into account. The binary descriptions were used from the literature data. The ternary interaction parameters were set to zero. The optimized parameters were listed. Two isothermal sections at 527 and 500°C and a liquidus projection were computed by [2009Zha]. The computed isothermal section at 527°C agrees with that determined experimentally by [2003Zen]. The computed isothermal section at 500°C is shown in Fig. 1