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Pure Appl. Chem., Vol. 72, No. 11, pp. 2137-2147, 2000.


Chemical kinetics at solid-solid interfaces*

Hermann Schmalzried

Institut für Physikalische Chemie, Universität Hannover, Germany

Abstract: The kinetics of solid-solid interfaces controls in part the course of heterogeneous reactions in the solid state, in particular in miniaturized systems. In this paper, the essential situations of interface kinetics in solids are defined, and the basic formal considerations are summarized. In addition to the role interfaces play as resistances for transport across them, they offer high diffusivity paths laterally and thus represent two-dimensional reaction media. Experimental examples will illustrate the kinetic phenomena at static and moving boundaries, including problems such as exchange fluxes, boundary-controlled solid-state reactions, interface morphology, nonlinear phenomena connected with interfaces, and reactions in and at boundaries, among others.

*Lectures from the 10th International Conference on High Temperature Materials Chemistry (HTMC-X), Jülich, Germany, 10-14 April 2000. Other presentations are published in this issue, pp. 2101-2186.

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