Low melting temperature alloys with magnetic dispersions
AssigneeAinissa G. Ramirez
InventorsAinissa G. Ramirez, Eric L. Hayes
Life of this patent
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Abstract
A low melting temperature composite material including an alloy having about 0.1% by weight to about 99% by weight of tin and about 0.1% by weight to about 90% by weight of an element selected from the group consisting of silver and gold, and about 0.1% by weight to about 50% by weight of magnetic particles dispersed in the alloy. Method of heating such a composite material, remotely manipulating such a composite material with magnetic fields, enhancing the mechanical properties of such a material, and making such a material are also disclosed.
Claims23
A low melting temperature composite material comprising:
- an alloy comprising:
- about 0.1% by weight to about 99% by weight of tin;
- and
- about 0.1% by weight to about 90% by weight of an element selected from the group consisting of silver and gold;
- and
- about 0.1% by weight to about 50% by weight of magnetic particles dispersed in the alloy.
The composite material of claims 11, further comprising about 0.1% by weight to about 5% by weight of copper.
A method of heating a low melting temperature composite material comprising an alloy of about 75% by weight to about 97% by weight of tin and about 1% by weight to about 5% by weight of silver, and about 0.5% by weight to about 20% by weight of magnetic particles, the method comprising:
- exposing the composite material to an alternating magnetic field.
A method of manipulating a low melting temperature composite material comprising an alloy of about 75% by weight to about 97% by weight of tin and about 1% by weight to about 5% by weight of silver, and about 0.5% by weight to about 20% by weight of magnetic particles, the method comprising:
- heating the composite material to a melting temperature;
- and
- applying a magnetic field to attract or repel the molten composite material.
A method of enhancing the mechanical properties of a low melting temperature composite material comprising an alloy of about 75% by weight to about 97% by weight of tin and about 1% by weight to about 5% by weight of silver, and about 0.5% by weight to about 20% by weight of magnetic particles, the method comprising:
- applying a unidirectional magnetic field to alloy while the alloy is cooled from a molten state to a solid state.
A method of making a low melting temperature composite material, comprising:
- grinding together a mixture of iron powder with Sn—Ag solder powder;
- adding flux to the powder mixture to form a paste;
- and
- heating the paste to boil off the flux and melt the paste.
Dependencies are inferred from the claim text.