Publications Details
Application of the square root diffusivity analysis to measuring the diffusivity of multicomponent alloys. [Ni-4at% Cr-6 at% Al-4 at% Mo]
The well known Boltzmann-Matano analysis'' can be used in general to measure the diffusivity of binary and ternary alloys. However for alloys containing four or more components, the analysis requires making assumptions, for example that the diffusivity is constant. Conversely, it can be shown that the square root diffusivity analysis'' applies to measuring diffusivities that vary with concentration, as long as the variation is linear with concentration. Methods of designing samples and evaluating data for the square root diffusivity analysis are discussed.