The Isothermal Section Of The Gd-Sb-Ti Ternary System At 500℃

Phase equilibria in the Gd-Sb-Ti ternary system at 500℃have been studied mainly by means of X-ray powder diffraction (powder XRD), with the aid of differential thermal analysis (DTA), scanning electron microscopy (SEM) and energy dispersive analysis. The existence of 9 binary compounds and none temary compound was confirmed: Gd₅Sb₃, Gd₄Sb₃, GdSb, Sb₂Ti, SbTi, Sb₅Ti₆,Sb₃Ti₅, Sb₂Ti₅, SbTi₃; The compounds Gd₁₆Sb₃₉, SbTi₄ were not observed in binary or ternary alloys at 500℃. This isothermal section consists of 12 single-phase regions, 21two-phase regions and 10 three-phase regions.12 single-phase regions are:α(Gd),β(Gd₅Sb₃),γ(Gd₄Sb₃),δ(GdSb),ε(Sb),ζ(Sb₂Ti),η(SbTi),θ(Sb₅Ti₆),ι(Sb₃Ti₅),κ(Sb₂Ti₅),λ(SbTi₃),μ(Ti)。21 two-phase regions are:α+β,β+γ,γ+δ,δ+ε,ε+ζ,ζ+η,η+θ,θ+ι,ι+κ,κ+λ,λ+μ,μ+β,μ+γ,μ+δ,δ+ζ,δ+η,δ+θ,δ+ι,δ+κ,δ+ε,δ+μ。10 three-phase regions are:α+β+γ,β+γ+μ,γ+δ+μ,δ+λ+μ,δ+κ+λ,δ+ι+κ,δ+θ+ι,δ+η+θ,δ+ζη,δ+ε+ζ。...