Effective Atomic Diffusion Coefficient Dependence on Applied Pressure During Spark Plasma Sintering

It has been hypothesized that the superimposition of an applied pressure enhances mass transfer during pressure-assisted sintering; however, a pressure-related coefficient DT, representing the contribution of a diffusion flux has never been established heretofore. Here, we aim to establish a theoretical framework to determine the DT by combining the Frenkel and E-S models with an Arrhenius equation. To accomplish this goal, via gas atomization...