Patent ID: 10794642

Abstract:
A heat transfer surface with a convective cooling layer includes a metal substrate and a porous metal foam layer transient liquid phase (TLP) bonded on the metal substrate. The porous metal foam layer includes a plurality of high melting temperature (HMT) particles and a plurality of micro-channels. A first TLP intermetallic layer is positioned between, and TLP bonds together, adjacent HMT particles to form the porous metal foam layer. A second TLP intermetallic layer is positioned between and TLP bonds a subset of the plurality of HMT particles to the metal substrate such that the porous metal foam layer is TLP bonded to the metal substrate. The plurality of micro-channels extend from an outer surface of the porous metal foam layer to the metal substrate such that a cooling fluid may be wicked through the plurality of micro-channels to the surface of the metal substrate.