Production method for metal matrix composite material

Abstract

A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.

1 . A metal matrix composite radiation shielding material, comprising:
 a pair of metal plates having a powder mixture disposed therebetween, said powder mixture including a metal powder and a ceramic powder, said metal matrix composite radiation shielding material being formed by the steps of:   (a) mixing a metal powder and a ceramic powder to prepare a mixed powder;   (b) providing a metal casing having a lower casing member and an upper closing member, the upper closing member is adapted to seal the metal casing closed;   (c) placing the mixed powder into the lower casing member;   (d) sealing the metal casing filled with the mixed powder by placing the upper closing member on the lower casing member so as to prepare a pre-rolling assembly;   (e) preheating the pre-rolling assembly in such a manner so as to maintain the mixed powder in a powder state; and   (f) rolling the pre-rolling assembly following said step of preheating to obtain the metal matrix composite material, where the metal matrix composite material includes a pair of metal plates having the mixed powder therebetween.   
     
     
         2 . A metal matrix composite radiation shielding material, comprising:
 a pair of metal plates having a powder mixture disposed therebetween, said powder mixture including a metal powder and a ceramic powder, said metal matrix composite radiation shielding material being formed by the steps of:   (a) mixing a metal powder and a ceramic powder to prepare a mixed powder;   (b) providing a metal casing having a casing body with a hollow shape with first and second open ends located in a laterally opposed relation to each other;   (c) closing the first open end of the casing body;   (d) placing the mixed powder into the casing body through the second open end;   (e) closing the second open end of the casing body to prepare a pre-rolling assembly;   (f) preheating the pre-rolling assembly in such a manner so as to maintain the mixed powder in a powder state; and   (g) rolling the pre-rolling assembly following said step of preheating to obtain the metal matrix composite material, where the metal matrix composite material includes a pair of metal plates having the mixed powder therebetween.   
     
     
         3 . An aluminum matrix composite radiation shielding material, comprising:
 a pair of aluminum plates having a powder mixture disposed therebetween, said powder mixture including a aluminum powder and a ceramic powder, said aluminum matrix composite radiation shielding material being formed by the steps of:   (a) mixing an aluminum powder and a ceramic powder to prepare a mixed powder;   (b) providing a casing body made of aluminum and formed in a hollow shape having first and second open ends located in a laterally opposed relation to each other;   (c) closing the first open end of the casing body with an aluminum plug;   (d) packing the mixed powder into the casing body through the second open end;   (e) closing the second open end of the casing body to prepare a pre-rolling assembly with a different aluminum plug;   (f) preheating the pre-rolling assembly in such a manner so as to maintain the mixed powder in a powder state; and   (g) rolling the pre-rolling assembly following said step of preheating to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of aluminum plates having the mixed powder therebetween.