Abrasive material, especially for turbine blade tips

Abstract From the Canadian patent

An abrasive material comprised of a metal matrix and evenly distributed ceramic particulates, is made toy mixing powder metal with the ceramic powder and heating to a temperature sufficient to melt most, but not all of the powder. In this way the ceramic does not float to the top of the material yet a dense material, is obtained. A nickel superalloy matrix will have at least some remnants of the original powder metal structure typically some, equiaxed grains, along with a fine dendritic structure thereby, imparting desirable high temperature strength when the abrasive material is applied to the tips of blades of gas turbine engines. Preferred matrices have a relatively wide liquidus-solidus …