Microscale Liquid Transport in Polycrystalline Inverse Opals across Grain Boundaries.

ABSTRACT: Delivering liquid through the void spaces in porous metals is a daunting challenge for a variety of emerging interface technologies ranging from battery electrodes to evaporation surfaces. Hydraulic transport characteristics of well-ordered porous media are governed by the pore distribution, porosity, and morphology. Much like energy transport in polycrystalline solids, hydraulic transport in semi-ordered porous media is predominantly limited by defects and grain boundaries. Here, we report the wicking performances for porous copper inverse opals having pore diameters from 300 to 1000 nm by measuring the capillary-driven liquid rise. The capillary performance parameter within single crystal domain (K _ij /R _eff  = 10^-3 to 10^-2 µm) is an order of m

SUBMITTER: Pham QN 

PROVIDER: S-EPMC5585244 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature