NANOPARTICLE-STABILIZED IMMISCIBLE ALLOYS

摘要

Solid immiscible alloys and methods for making the solid immiscible alloys are provided. The microstructure of the immiscible alloys is characterized by a minority phase comprising a plurality of particles of an inorganic material dispersed in a majority phase comprising a continuous matrix of another inorganic material. The methods utilize nanoparticles to control both the collisional growth and the diffusional growth of the minority phase particles in the matrix during the formation of the alloy microstructure.

主权项

1. A solid immiscible alloy material comprising:
(a) an immiscible alloy comprising a majority phase comprising a continuous matrix of a first inorganic material; and a minority phase comprising a plurality of particles of a second inorganic material dispersed in the majority phase, wherein the minority phase particles have an average diameter of no greater than about 20 μm; and (b) nanoparticles comprising a thermally stable material coating the surfaces of the dispersed minority phase particles, wherein the average smallest diameter for the distribution of the nanoparticles is no greater than about 250 nm.