Method for producing nano-carbon composite

Abstract

A method for producing a nano-carbon composite is provided. The method includes mixing nano-carbon powder and matrix alloy powder by milling, to provide a mixed powder and substantially evenly penetrating the nano-carbon powder inside of the matrix alloy by milling the mixed powder. In addition, the method includes clustering the mixed powder by milling the mixed powder slower than in the penetrating process.

What is claimed is: 
     
         1 . A method for producing a nano-carbon composite, comprising:
 mixing nano-carbon powder and matrix alloy powder by milling, to provide a mixed powder;   substantially evenly penetrating the nano-carbon powder inside of the matrix alloy powder by milling the mixed powder; and   clustering the mixed powder by milling the mixed powder slower than in the penetrating process.   
     
     
         2 . The method for producing the nano-carbon composite of  claim 1 , wherein the nano-carbon powder includes at least one of a group selected of: carbon nano tube (CNT) and carbon nano fiber (CNF). 
     
     
         3 . The method for producing the nano-carbon composite of  claim 1 , wherein the milling condition in the mixing step is about 40 to 60 RPM for about 8 to 11 hours. 
     
     
         4 . The method for producing the nano-carbon composite of  claim 1 , wherein the milling condition in the penetrating step is about 500 to 700 RPM for about 2 to 3 hours. 
     
     
         5 . The method for producing the nano-carbon composite of  claim 1 , wherein the milling RPM in the clustering step is about 75 to 85% of the milling RPM in the penetrating step. 
     
     
         6 . The method for producing the nano-carbon composite of  claim 1 , wherein the milling condition in the clustering step is about 450 to 500 RPM for about 40 to 70 min. 
     
     
         7 . The method for producing the nano-carbon composite of  claim 1 , wherein the matrix alloy powder is aluminum alloy powder. 
     
     
         8 . The method for producing the nano-carbon composite of  claim 1 , wherein the nano-carbon composite includes particles in a size of about 400 μm or greater.