Hickson, Roslyn; Barry, Steven; Sidhu, Harvinder; Mercer, Geoffry
There are many ways to define how long diffusive processes take, and an appropriate "critical time" is highly dependent on the specific application. In particular, we are interested in diffusive processes through multilayered materials, which have applications to a wide range of areas. Here we perform a comprehensive comparison of six critical time definitions, outlining their strengths, weaknesses, and potential applications. A further four definitions are also briefly considered. Equivalences...[Show more]
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