US 12,230,425 B2
Solid composite material comprising nanoparticles and an alloy based on manganese, aluminum and optionally carbon, and method for producing the same
Hilmar Vidarsson, Höganäs (SE); Björn Skårman, Höganäs (SE); Martin Häggblad Sahlberg, Uppsala (SE); and Samrand Shafeie, Stockholm (SE)
Assigned to Höganäs AB (Publ), Höganäs (SE)
Appl. No. 17/436,260
Filed by Höganäs AB (Publ), Höganäs (SE)
PCT Filed Feb. 27, 2020, PCT No. PCT/EP2020/055189
§ 371(c)(1), (2) Date Sep. 3, 2021,
PCT Pub. No. WO2020/178145, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 19160887 (EP), filed on Mar. 5, 2019.
Prior Publication US 2022/0165463 A1, May 26, 2022
Int. Cl. H01F 1/147 (2006.01); B22F 1/054 (2022.01); B22F 1/142 (2022.01); B22F 9/04 (2006.01); B22F 9/08 (2006.01); C22C 1/04 (2023.01); C22C 22/00 (2006.01); C22C 32/00 (2006.01); H01F 1/047 (2006.01); H01F 41/02 (2006.01)
CPC H01F 1/047 (2013.01) [B22F 1/056 (2022.01); B22F 9/04 (2013.01); B22F 9/082 (2013.01); C22C 1/04 (2013.01); C22C 22/00 (2013.01); C22C 32/0047 (2013.01); H01F 1/147 (2013.01); H01F 41/02 (2013.01); B22F 2304/058 (2013.01); C22C 2202/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. Solid composite material comprising an alloy based on manganese, aluminum and optionally carbon, and dispersed nanoparticles made from a material X, the material X being different from manganese, aluminum, carbon or a mixture, alloy, or compound consisting thereof and satisfying the following requirements:
a. the melting temperature of the material X is 1700° C. or higher; and
b. the material X comprises a metal,
wherein 95% by weight or more of the alloy is formed by manganese, aluminum, and carbon, if present,
wherein the amount of the dispersed nanoparticles made from the material X is 15% by weight or less, relative to the total weight of the solid composite material including the nanoparticles, according to the expression:
amount of the dispersed nanoparticles (%)=[weight of the dispersed nanoparticles]/[total weight of the magnetic solid material including the dispersed nanoparticles]×100.