Solid-phase reactions and the order-disorder phase transition in thin films

A comparative analysis was carried out of the initiation temperatures of so lid-phase reactions in bilayer solid films and the Kurnakov temperatures of the phases forming in the reaction products. It has been shown that in sup erstructures where ordering is usually observed, the Kurnakov temperature c oincides with the initiation temperature of the solid-phase reactions if no other solid-phase structural transformation precedes the order-disorder ph ase transition in the state diagram. A rule was proposed by which pairs of films capable of entering into solid-phase reactions and their initiation t emperatures can be determined. (C) 2001 MAIK "Nauka/Interperiodica".