Analytical and numerical modeling of phase coarsening in dense binary systems
Source abstract
Abstract
The kinetics of phase coarsening in a dense binary, two-phase system were studied theoretically. Existing previous relations are recovered and generalized. Equations for particle size distribution and coarsening are derived in a rigorous way. One of the interesting findings is that the scaling exponent, m , for the kinetics of phase coarsening at ultra high volume fractions takes values in the range 2 < m < 3 , depending on the precise volume fraction of the dispersed phase, when varied over the narrow range 0 . 9 < V V < 1 . Scaled particle size distributions derived from the current study depend on volume fractions, which is in contrast to Wagner’s particle size distribution for interface-reaction-controlled phase coarsening. The current work substantiates that the kinetics of phase coarsening at ultra high volume fractions, exhibits a blend of both interface-reaction-controlled and volume diffusion-controlled phase coarsening.
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Research context
OpenAlex topics: nanoparticles nucleation surface interactions · High Temperature Alloys and Creep · Block Copolymer Self-Assembly
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