Processes for preparing a material cermet with a gradient of composition, the product cermet with gradient composition and method for protecting a metal is exposed to an erosive material superfu00eccie

摘要

Process to prepare a material cermet with a gradient of composition, the product cermet with gradient composition and method for protecting a metal superfu00eccie exposed to an erosive material.Cermets, particularly cermets with gradient composition.Can be prepared from metal alloys suitable for a massive heat treatment process involving a reactive environment selected reactive group that is reactive with carbon.Reactive nitrogen, boron reagent reactive oxygen and mixtures of these.