The sintering of pressed binary mixtures of oxide powders was studied. It was shown that a difference between the rates of diffusion of cations was responsible for the appearance of Kirkendall and Frenkel effects, as well as for the formation of a sintered skeleton with large pores.

V.S.Bakunov, A.V.Belyakov: Neorganicheskie Materialy, 1994, 30[4], 552-5 (Inorganic Materials, 1994, 30[4], 516-8)