CPC B23K 35/26 (2013.01) [B23K 35/025 (2013.01); H01F 1/047 (2013.01); H01F 1/14733 (2013.01)] | 16 Claims |
1. A method of making an amalgamation preform, comprising:
providing a particle-liquid mixture containing a plurality of types of solid particles and a liquid base metal, wherein the plurality of types of solid particles at least includes:
reactive particles, reactive with the base metal, and
non-reactive magnetic particles;
applying a magnetic field to the particle-liquid mixture to magnetically disperse the plurality of types of solid particles in the liquid base metal to form a particle-liquid dispersion without inducing a reaction between the reactive particles and the liquid base metal;
solidifying the liquid base metal to disperse the plurality of types of solid particles in a solidified base metal without inducing a reaction between the reactive particles and the solid base metal; and
preparing a solid amalgamation preform including the plurality of types of solid particles and the solidified base metal,
wherein all of the plurality of types of solid particles are solely located in one or more regions that are proximal to an outermost surface of the solid amalgamation preform.
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