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NANOPARTICLE-STABILIZED IMMISCIBLE ALLOYS

  • US 20180320252A1
  • Filed: 06/27/2018
  • Published: 11/08/2018
  • Est. Priority Date: 11/06/2012
  • Status: Active Grant
First Claim
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1. A method of making a solid immiscible alloy material comprising:

  • an immiscible alloy having 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; and

    nanoparticles comprising a thermally stable material coating the surfaces of the dispersed minority phase particles;

    the method comprising;

    (a) forming a single-phase liquid solution comprising the first inorganic material and the second inorganic material at a temperature above the liquid miscibility gap for the immiscible alloy;

    (b) introducing solid nanoparticles comprising a thermally stable material into the single-phase liquid solution while it is at a temperature above the liquid miscibility gap;

    (c) cooling the liquid solution through the liquid miscibility gap, whereby the nanoparticles form a coating on liquid droplets of the minority phase that forms in a liquid matrix of the majority phase; and

    (d) cooling the resulting material to a temperature below the solidus temperature, whereby the solid immiscible alloy material forms.

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