US 12,233,455 B2
Synthesis of nanoscale metal feedstock for additive manufacturing
Stanislau Niauzorau, Gilbert, AZ (US); Aliaksandr Sharstniou, Gilbert, AZ (US); Amm G. Hasib, Chandler, AZ (US); Bruno Azeredo, Scottsdale, AZ (US); Natalya Kublik, Tempe, AZ (US); Kenan Song, Athens, GA (US); Nikhilesh Chawla, West Lafayette, IN (US); and Sridhar Niverty, West Lafayette, IN (US)
Assigned to Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (US); and Purdue Research Foundation, West Lafayette, IN (US)
Filed by Stanislau Niauzorau, Gilbert, AZ (US); Aliaksandr Sharstniou, Gilbert, AZ (US); Amm G. Hasib, Chandler, AZ (US); Bruno Azeredo, Scottsdale, AZ (US); Natalya Kublik, Tempe, AZ (US); Kenan Song, Athens, GA (US); Nikhilesh Chawla, West Lafayette, IN (US); and Sridhar Niverty, West Lafayette, IN (US)
Filed on Apr. 8, 2024, as Appl. No. 18/628,908.
Application 18/628,908 is a continuation of application No. 17/841,371, filed on Jun. 15, 2022, granted, now 11,980,936.
Claims priority of provisional application 63/211,393, filed on Jun. 16, 2021.
Prior Publication US 2024/0246143 A1, Jul. 25, 2024
Int. Cl. B22F 1/10 (2022.01); B22F 1/05 (2022.01); B22F 1/145 (2022.01); B22F 10/18 (2021.01); B33Y 10/00 (2015.01); B33Y 40/10 (2020.01); B33Y 70/10 (2020.01)
CPC B22F 1/10 (2022.01) [B22F 1/05 (2022.01); B22F 1/145 (2022.01); B22F 10/18 (2021.01); B33Y 10/00 (2014.12); B33Y 40/10 (2020.01); B33Y 70/10 (2020.01); B22F 2301/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of dealloying metallic powder to yield porous metal particles, the method comprising:
combining the metallic powder with an acid or a base to yield a mixture;
wherein a maximum temperature of the mixture is in a range of 30° C. to 90° C.; and
separating the porous metal particles from the mixture, wherein a ligament size of the porous metal particles is less than 100 nm.