US 12,428,732 B2
Metal material and method for manufacturing metal material
Yusuke Kureishi, Osaka (JP); Tomoharu Takeyama, Osaka (JP); and Akihisa Hosoe, Osaka (JP)
Assigned to Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 17/798,596
Filed by Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Feb. 25, 2020, PCT No. PCT/JP2020/007449
§ 371(c)(1), (2) Date Aug. 10, 2022,
PCT Pub. No. WO2021/171359, PCT Pub. Date Sep. 2, 2021.
Prior Publication US 2023/0090510 A1, Mar. 23, 2023
Int. Cl. C23C 18/32 (2006.01); C23C 18/16 (2006.01); C23C 18/18 (2006.01)
CPC C23C 18/32 (2013.01) [C23C 18/1644 (2013.01); C23C 18/1817 (2013.01); C23C 18/1827 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A metal material comprising:
a base material;
an oxide layer disposed on a surface of the base material; and
a metal layer disposed on a surface of the oxide layer, wherein
the base material includes aluminum,
the oxide layer includes aluminum, nickel, and oxygen,
the metal layer includes nickel,
an average thickness of the oxide layer is no less than 50 nm and no more than 250 nm,
the oxide layer includes a plurality of dispersed pores, and
a size of the pores is no less than 1 nm and no more than 50 nm.