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US 12,226,831 B2Granted
Direct printing and writing using undercooled metallic core-shell particles
AssigneesIowa State University Research Foundation, Inc., Indium Corporation of America
InventorsMartin Thuo, Christophe Frankiewicz, Ian Tevis
Life of this patent
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Abstract
A method of direct printing or writing of a metallic material involves depositing, with a printing device or writing device, an ink comprising of at least undercooled liquid metallic particles dispersed in a carrier fluid. The ink is deposited on any substrate surface to deposit the undercooled liquid metal particles thereon as one or more layers that can form a desired pattern or layered structure.
Claims20
A printing or writing ink comprising:
- undercooled liquid metallic core-shell particles dispersed in a carrier fluid, the undercooled liquid metallic core-shell particles comprising a liquid metallic core material, wherein the core-shell particles are 5 wt % to 80 wt % of the printing or writing ink, wherein the printing or writing ink is a printable or writable suspension of the core-shell particles.
A printing or writing ink comprising:
- undercooled liquid metallic core-shell particles dispersed in a carrier fluid, the undercooled liquid metallic core-shell particles comprising a liquid metallic core material, wherein the printing or writing ink is a printable or writable suspension of the core-shell particles;
- wherein
- the carrier fluid comprises a cellulose solution, or
- the carrier fluid comprises hydroxyethyl cellulose, or
- the carrier fluid comprises
- hydroxyethyl cellulose,
- water, and
- methanol or ethanol.
5 more elements
A printing or writing ink comprising:
- undercooled liquid metallic core-shell particles dispersed in a carrier fluid, the undercooled liquid metallic core-shell particles comprising a liquid metallic core material, wherein the core-shell particles comprise a Bi—Pb—Sn alloy, wherein the printing or writing ink is a printable or writable suspension of the core-shell particles.
Dependencies are inferred from the claim text.