US 11,752,666 B2
Coated irregular surfaces
Martin Thuo, Ames, IA (US); Thomas Ward, III, Des Moines, IA (US); Andrew Martin, Ames, IA (US); Julia Jinling Chang, Ames, IA (US); and Chuanshen Du, Ames, IA (US)
Assigned to Iowa State University Research Foundation, Inc., Ames, IA (US)
Filed by Iowa State University Research Foundation, Inc., Ames, IA (US)
Filed on Aug. 31, 2021, as Appl. No. 17/463,248.
Claims priority of provisional application 63/072,495, filed on Aug. 31, 2020.
Prior Publication US 2022/0063144 A1, Mar. 3, 2022
Int. Cl. B29C 33/38 (2006.01); C22C 28/00 (2006.01); B29K 83/00 (2006.01)
CPC B29C 33/3842 (2013.01) [C22C 28/00 (2013.01); B29K 2083/00 (2013.01); B29K 2905/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of forming a metallic inverse surface replica, the method comprising:
applying a solution, the solution comprising suspended undercooled liquid metallic particles and one or more organic solvents and/or organic liquids, to an irregular surface of a substrate comprising an organic substrate, a biological substrate, a bone, or a combination thereof, the particles comprising
a solid shell comprising a metal oxide, and
a liquid metallic core that is below the melting point of the liquid metallic core, and
drying the applied solution on the irregular surface, to form a particle-coated substrate;
rupturing the solid shells of the particles of the particle-coated substrate, wherein the rupturing forms a metallic-coated substrate, the metallic-coated substrate comprising a metallic coating on the irregular surface of the substrate, the metallic coating comprising a solidified metal and/or metal alloy and solid metal oxide shells; and
removing the metallic coating comprising the solidified metal and/or metal alloy from the metallic-coated substrate to form the metallic inverse surface replica.