Microstructural, phase, and thermophysical stability of CrMoNbV refractory multi-principal element alloys
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36 MATERIALS SCIENCE↗
Engineering topics
Elder, Kate L. M.
Publications and source records attributed to Elder, Kate L. M..
Grain boundary formation through particle detachment during coarsening of nanoporous metals
Significance Nanoporous metals are prototypical bicontinuous structures that have a large surface area and many applications. We demonstrate that an in-grain orientation spread develops during coarsening in nanoporous metals, leading to the formation of a nanocrystalline–nanoporous structure. The process of particles detaching and reattaching as the structure coarsens is identified as a mechanism of grain boundary formation. Coarsening the structure results in significant particle detachment with detachment rates that vary drastically with changes in the volume fraction and volume fraction inhomogeneities in the nanostructure. These results demonstrate that particle detachment must be understood to have full control of the nanocrystalline–nanoporous structure and improve material properties.
36 MATERIALS SCIENCE↗