The quasi-ternary CdSe–Ga2Se3–Bi2Se3
system
Chem.
Met. Alloys 3 (2010) 5-11
https://doi.org/10.30970/cma3.0110
S.M.
SOSOVSKA, I.D. OLEKSEYUK, O.V. PARASYUK
Differential-thermal analysis, X-ray
diffraction, and metallography were used to study the interaction between the components of the quasi-ternary CdSe–Ga2Se3–Bi2Se3 system. Phase diagrams of four polythermal
sections, the isothermal section at 670 K, as well as a projection of the
liquidus surface have been constructed. The projection of the liquidus surface
consists of six fields of primary crystallization of the phases, which are
separated by 12 monovariant curves and 11 invariant points. The type of mono- and invariant processes in
the system has been investigated and the coordinates of the invariant points
have been determined. The system is triangulated by the quasi-binary section CdGa2Se4-Bi2Se3
into two sub-systems
CdSe–CdGa2Se4–Bi2Se3 and CdGa2Se4–Ga2Se3–Bi2Se3. The present results can be employed for the growth of CdGa2Se4 single crystals from non-stoichiometric melts.
Projection of the liquidus surface of the
CdSe–Ga2Se3–Bi2Se3 system.
Keywords
Thermal analysis / Chalcogenide /
Phase diagram / Isothermal section / Liquidus surface