Alexandre Velhinho earned his Ph.D in Materials Science – Composite Materials – from Universidade Nova de Lisboa in 2004. His scientific activity has been essentially dedicated to the study of Heterogeneous Materials, covering Composite, Cellular and Functionally Graded Materials. His studies comprise the full life cycle of heterogeneous materials, comprising: - modelling (elastic behaviour of compact and hollow particle-reinforced metal matrix composites); - simulation (prediction of ceramic particle distribution in centrifugally-cast metal matrix functionally graded composites); - processing (Centrifugal Casting, Friction Stir Processing and Accumulative Roll Bonding for fabrication of metal-matrix functionally graded composites; production of cellular composite metamaterials by Additive Manufacturing; Friction Extrusion for production of nanoclay-reinforced polymer matrix composites); - characterization (with microtomographic imaging deserving significant efforts); - damage (tribocorrosion of ceramic-reinforced metal matrix composites). Teaching-wise, he is responsible for subjects covering the mechanics of materials, behaviour, manufacturing and uses of composite materials, cellular materials, processing technologies for metals and materials selection; throughout these subjects, a strong emphasis is placed on the role of Materials Engineering in the implementation of a Circular Economy of Materials.