Modification of the structural, textural, and mechanical properties of an Al2O3/Al composite on the addition of an Al-SBA-15-type mesoporous phase

Abstract

The formation of the pore structure of metal–ceramic materials based on Al₂O₃/Al composites has been studied in detail by modifying them via the incorporation of SBA-15-type mesoporous materials. The composition, pore structure, pore size, and morphology of the composite particles have been studied using nitrogen adsorption/desorption isotherms, scanning electron microscopy, and X-ray diffraction. We have produced Al-SBA-15/Al₂O₃/Al monoliths that combine properties of both adsorbents and permeable materials, but the incorporation of Al-SBA-15 into an Al₂O₃/Al matrix reduces the permeability and mechanical strength of the composites.