A method, comprising: producing an initial powder mixture comprising ceramic nanoparticles mixed with superalloy mother particles having an average diameter larger than the average diameter of the ceramic nanoparticles; forming the initial powder mixture into a consumable solid body; and gradually melting at least a portion of the consumable solid body, while rotating the consumable solid body to cast-off a uniformly dispersed powder mixture, in which the ceramic nanoparticles are uniformly dispersed and infiltrated within the superalloy mother particles; characterized in that the method further comprises: mixing hard wear particles into the uniformly dispersed powder mixture after the steps of forming and gradually melting to yield a final powder mixture, the hard wear particles having an average diameter greater than that of the ceramic nanoparticles and a hardness greater than that of the superalloy mother particles in which the ceramic nanoparticles are infiltrated; after mixing the hard wear particles, the final powder mixture contains at least 85% superalloy powder by weight, the remainder particulate ceramic materials present in the form of the ceramic nanoparticles and the hard wear particles; wherein the hard wear particles have an average diameter greater than that of the ceramic nanoparticles and less than that of the superalloy mother particles. producing an initial powder mixture comprising ceramic nanoparticles mixed with superalloy mother particles having an average diameter larger than the average diameter of the ceramic nanoparticles; forming the initial powder mixture into a consumable solid body; and gradually melting at least a portion of the consumable solid body, while rotating the consumable solid body to cast-off a uniformly dispersed powder mixture, in which the ceramic nanoparticles are uniformly dispersed and infiltrated within the superalloy mother particles; characterized in that the method further comprises: mixing hard wear particles into the uniformly dispersed powder mixture after the steps of forming and gradually melting to yield a final powder mixture, the hard wear particles having an average diameter greater than that of the ceramic nanoparticles and a hardness greater than that of the superalloy mother particles in which the ceramic nanoparticles are infiltrated; after mixing the hard wear particles, the final powder mixture contains at least 85% superalloy powder by weight, the remainder mixing hard wear particles into the uniformly dispersed powder mixture after the steps of forming and gradually melting to yield a final powder mixture, the hard wear particles having an average diameter greater than that of the ceramic nanoparticles and a hardness greater than that of the superalloy mother particles in which the ceramic nanoparticles are infiltrated; after mixing the hard wear particles, the final powder mixture contains at least 85% superalloy powder by weight, the remainder particulate ceramic materials present in the form of the ceramic nanoparticles and the hard wear particles; wherein the hard wear particles have an average diameter greater than that of the ceramic nanoparticles and less than that of the superalloy mother particles.