Microstructure, permeability and mechanical behaviour of ceramic foams

摘要: This work is part of a model study aimed at upgrading the technique creating porosity via incorporation organic particles used in traditional ceramics, exploring same time colloidal processing from coagulated slurries. The method described another work, based on manipulation short-range repulsive (lubricating) hydration force and long-range attractive van der Waals force, was to pack high density bimodal mixture submicron ceramic (matrix) much larger (inclusions) during consolidation by pressure filtration dispersed suspensions added electrolyte. Investigations carried out produce strong porous bodies, with tailored pore structure, are described. liquid-like rheology saturated consolidated body produced suspension explains characteristic features observed after burn-up inclusions sintering. reflects its history, which can be microstructure, mechanical behavior gas permeability.