Porous copper body and porous copper composite part

Abstract

A porous copper body including a skeleton having a three-dimensional network structure is provided. A porous layer having unevenness is formed on a surface of the skeleton, the specific surface area is set to be 0.01 m 2 /g or greater, and the porosity is set to be in a range of 50% to 90%.

1 . A porous copper body, comprising:
 a skeleton having a three-dimensional network structure,   wherein a porous layer having unevenness is formed on a surface of the skeleton,   a specific surface area is set to be 0.01 m 2 /g or greater, and   a porosity is set to be in a range of 50% to 90%.   
     
     
         2 . The porous copper body according to  claim 1 ,
 wherein the skeleton is constituted by a sintered body made of a plurality of copper fibers, and   in each of the copper fibers, a diameter R is set to be in a range of 0.02 mm to 1.0 mm and a ratio L/R of a length L to the diameter R is set to be in a range of 4 to 2500.   
     
     
         3 . A porous copper composite part, comprising:
 a main body of the composite part; and   the porous copper body according to  claim 1  bonded to the main body of the composite part.   
     
     
         4 . The porous copper composite part according to  claim 3 ,
 wherein a bonding surface of the main body of the composite part, to which the porous copper body is bonded, is made of copper or a copper alloy, and the porous copper body and the main body of the composite part are bonded to each other through sintering.   
     
     
         5 . A porous copper composite part, comprising:
 a main body of the composite part; and   the porous copper body according to  claim 2  bonded to the main body of the composite part.   
     
     
         6 . The porous copper composite part according to  claim 5 ,
 wherein a bonding surface of the main body of the composite part, to which the porous copper body is bonded, is made of copper or a copper alloy, and the porous copper body and the main body of the composite part are bonded to each other through sintering.