US 11,964,327 B2
Method for preparing functional composite powder and functional composite powder
Ho Jin Ryu, Daejeon (KR); and Tae Gyu Lee, Daejeon (KR)
Assigned to KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon (KR)
Filed by KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon (KR)
Filed on May 23, 2022, as Appl. No. 17/750,603.
Claims priority of application No. 10-2021-0089748 (KR), filed on Jul. 8, 2021.
Prior Publication US 2023/0013308 A1, Jan. 19, 2023
Int. Cl. B22F 9/04 (2006.01); B29C 64/141 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01)
CPC B22F 9/04 (2013.01) [B29C 64/141 (2017.08); B22F 2009/045 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12)] 9 Claims
OG exemplary drawing
 
1. A spherical functional composite powder in which an implantation material layer is formed on metal material particles, the implantation material layer includes a dispersion layer of an implantation material, a shell layer, or both thereof, and the implantation material layer contains a mechanical residual stress, wherein the functional composite powder has a size of 10 to 200 μm, the metal material particles are spheroidized metal material particles, and a surface of the spheroidized metal material particles is satellite-free; and wherein at least a portion of the implantation material layer penetrates into the metal material particles at 1 to 80% of the total thickness of the implantation material.