Showing papers by "Augustana College (Illinois) published in 1979"
TL;DR: In this paper, the effect of the traps on the time dependent permeation of faster diffusing atoms was studied in the special case of low mobility impurity atom traps that have been previously diffused into one surface of a flat membrane.
Abstract: Cases in which traps are nonuniformly distributed in a solid can be treated by using a modification of the Caskey-Pillinger finite difference method of obtaining solutions to the McNabb-Foster diffusion and trapping equations. The special case of low mobility impurity atom traps that have been previously diffused into one surface of a flat membrane was studied by math modeling with regard to the effect of the traps on the time dependent permeation of faster diffusing atoms. Results obtained for uniformly distributed traps are compared with those expected for nouniformly distributed traps.
14 citations