Chemical kinetics at solid-solid interfaces*
Institut für Physikalische Chemie, Universität
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.
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