US 12,331,385 B2
Composite material
Choongnyun Paul Kim, Seoul (KR); and Gi Su Ham, Seoul (KR)
Assigned to KOLON INDUSTRIES, INC., Seoul (KR)
Appl. No. 17/758,722
Filed by KOLON INDUSTRIES, INC., Seoul (KR)
PCT Filed Jan. 14, 2021, PCT No. PCT/KR2021/000568
§ 371(c)(1), (2) Date Jul. 13, 2022,
PCT Pub. No. WO2021/145708, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 10-2020-0006227 (KR), filed on Jan. 16, 2020; and application No. 10-2021-0004210 (KR), filed on Jan. 12, 2021.
Prior Publication US 2023/0046282 A1, Feb. 16, 2023
Int. Cl. C22C 45/02 (2006.01)
CPC C22C 45/02 (2013.01) [C22C 2200/02 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A composite material comprising:
a primary phase which is an alloy comprising a metallic element M and a nonmetallic element X and of which includes an amorphous phase in an amount of 50 vol % to 80 vol % based on the entire region of the primary phase; and
a secondary phase which is dispersed in the primary phase and comprises a ceramic compound, the ceramic compound comprising the metallic element M and the nonmetallic element X and represented by MaXb where a and b are each greater than 0,
wherein the metallic element M comprises Fe, Cr, and at least one selected from the group consisting of Mo, Ni, Co, Cu, Ti, V, Nb, Ta, W, Mn and Al; and the nonmetallic element X comprises at least one selected from the group consisting of Si, B, C, N, S and P,
the secondary phase
has a distribution density of 0.2 phase/μm to 1.2 phase/μm; and
a tertiary phase which is dispersed in the primary phase and comprises a crystal phase of the metallic element M.