Brazing composition and method for brazing parts made of alumina-based materials with said composition
AssigneeCommissariat a l'Energie Atomique
InventorsAdrien Gasse, Nicolas Eustathopoulos
Life of this patent
Estimating the term…
Abstract
A refractory braze composition and process for assembling alumina-containing parts to another alumina-based material, metal or a metal alloy by reactive or non-reactive refractory brazing using a braze composition provide assemblies entirely of alumina or containing alumina and a metal or metal alloy. The braze composition is non-reactive with alumina or a reactive composition, whose reactivity with alumina is controlled, and it is formed of aluminium, of titanium, and of a matrix made up either of palladium, or of nickel, or of a nickel and palladium alloy.
Claims35
Refractory braze composition, non-reactive with alumina, whose atomic percentage composition is 2 to 10% aluminium, 2 to 10% titanium and 80 to 96% of a matrix formed either of palladium, or of nickel, or of a nickel and palladium alloy in all proportions.
Reactive refractory braze composition, whose reactivity with alumina is controlled and whose atomic percentage composition is 2 to 48% aluminium, 10 to 96% titanium and 2 to 80% of a matrix formed either of palladium, or of nickel or of a nickel and palladium alloy in all proportions, provided that the atomic percentage of titanium is greater than the atomic percentage of aluminium.
Dependencies are inferred from the claim text.