ON THE STABILITY OF BINARY COMPLEX OXIDES

Factors concerning with the stability of binary complex oxides has been stu-died. For complex oxides with ionic bonds,the main factors determining the heatof formation of such oxides appear to be the relevant ionic radius and the va-lency of the component elements. For oxides with partial covalency, however, thescreening parameter proposed in this paper may also be important in addition tothe factors mentioned above.