So far in the literature, the synth

So far in the literature, the synthesis of HEOs is usually in the temperature range of 400-900 C. High temperature is not only required to form single-phase by the entropy stabilization, but also necessary to promote the inter-diffusion of reactants. GEHO  GSimple is necessary except of meta-stable HEOs. For novel synthesis approach, the GEHO is possible to drive the formation of single phase HEOs when the dissolution and recrystallization rates are fast enough.