ФАЗОВІ РІВНОВАГИ В СИСТЕМАХ PbGa2Х4–SiХ2 (Х – S, Sе)

2019 
Phase equilibria and phase diagrams of the PbGa2Х4–SiХ2 systems (Х –S, Sе) were investigated by X-ray diffraction, differential thermal and microstructure analysis methods. The sulfur-containing system features a new compound of the PbGa2SiS6 composition that has incongruent melting nature at 975 K. In the selenide system, the existence of the PbGa2SiSе6 compound and the peritectic nature of its formation at 936 K were confirmed. The systems exhibit minor solid solubility ranges of the end compounds.
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