New ternary compounds of Ca 14 Al 10 Zn 6 O 35 and Ca 3 Al 4 ZnO 10 compositions have been synthesized in the CaO–Al 2 O 3 –ZnO system. Single crystals of the new compounds have been grown, and crystal structures and crystallochemical properties were established. The phenomenon of heterovalence isomorphous statistical substitution of aluminium for zinc in alumino-oxygen tetrahedra has been established. It is now possible to synthesize a large group of new ternary compounds, the compositions of which are similar to that of spinels. The structure and properties of the new phases are presented.
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Barbanyagre et al. (1997) studied this question.