US 12,467,146 B2
High-strength multi-functional coating with multi-level structure, and preparation method thereof
Hongzhi Cui, Qingdao (CN); Wei Huang, Ningbo (CN); Feiya Liu, Qingdao (CN); Guoliang Ma, Qingdao (CN); Boyu Jiang, Ningbo (CN); Cuidi Mo, Qingdao (CN); and Liukui Gong, Ningbo (CN)
Assigned to Ocean University of China, Qingdao (CN); and Ningbo Branch of China Academy of Ordnance Science, Ningbo (CN)
Filed by Ocean University of China, Qingdao (CN); and Ningbo Branch of China Academy of Ordnance Science, Ningbo (CN)
Filed on Dec. 5, 2024, as Appl. No. 18/969,925.
Claims priority of application No. 202410046290.7 (CN), filed on Jan. 12, 2024.
Prior Publication US 2025/0230552 A1, Jul. 17, 2025
Int. Cl. C23C 24/10 (2006.01); B22F 10/25 (2021.01); B23K 26/352 (2014.01); C22C 1/053 (2023.01); C22C 32/00 (2006.01)
CPC C23C 24/103 (2013.01) [B22F 10/25 (2021.01); B23K 26/352 (2015.10); C22C 1/053 (2013.01); C22C 32/0047 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A coating, the coating being prepared by infrared laser plasma paraxial synchronous composite cladding and components of the coating comprising copper alloy powder and ceramic powder,
wherein a mass percentage of the copper alloy powder is 90% to 99%, and a mass percentage of ceramic powder is 1% to 10%, wherein
the coating has a micro-scale columnar crystal structure; the micro-scale columnar crystal structure serves as a pure thermally and electrically conductive channel; and submicro- and nano-scale ceramic reinforcement phases are produced between columnar crystals, and the submicro- and nano-scale ceramic reinforcement phases are distributed along grain boundaries;
the columnar crystals each have a diameter of 100 μm to 200 μm; and
the copper alloy powder has a particle size of 100 μm to 200 μm, and the ceramic powder has a particle size of 50 nm to 200 nm.