A system for creating a braze joint , the system comprising: an environment operable to reach a braze temperature sufficient to melt at least a portion of a braze material ; a component within said environment , said component comprising: a base comprising a base surface ; a recess depending from said base surface into said base to an inner edge ; and being characterised: said braze material within said recess and forming a cap above said base surface , said braze material filling said recess from said cap to said inner edge , said cap having an exposed braze surface ; an insulation layer at least partially covering said exposed braze surface ; and a cooling device operable to extract heat from a location on said base , said location being closer to said inner edge of said recess than to said cap , so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge , while having less effect on a first portion of braze material located near the cap . an environment operable to reach a braze temperature sufficient to melt at least a portion of a braze material ; a component within said environment , said component comprising: a base comprising a base surface ; a recess depending from said base surface into said base to an inner edge ; and being characterised: said braze material within said recess and forming a cap above said base surface , said braze material filling said recess from said cap to said inner edge , said cap having an exposed braze surface ; an insulation layer at least partially covering said exposed braze surface ; and a cooling device operable to extract heat from a location on said base , said location being closer to said inner edge of said recess than to said cap , so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge , while having less effect on a first portion of braze material located near the cap . a base comprising a base surface ; a recess depending from said base surface into said base to an inner edge ; and being characterised: said braze material within said recess and forming a cap above said base surface , said braze material filling said recess from said cap to said inner edge , said cap having an exposed braze surface ; an insulation layer at least partially covering said exposed braze surface ; and a cooling device operable to extract heat from a location on said base , said location being closer to said inner edge of said recess than to said cap , so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge , while having less effect on a first portion of braze material located near the cap . said braze material within said recess and forming a cap above said base surface , said braze material filling said recess from said cap to said inner edge , said cap having an exposed braze surface ; an insulation layer at least partially covering said exposed braze surface ; and a cooling device operable to extract heat from a location on said base , said location being closer to said inner edge of said recess than to said cap , so that the cooling device enhances the heat extraction of a second portion of braze material located near the inner edge , while having less effect on a first portion of braze material located near the cap . <EOS>