Sealing system, method of manufacture thereof and articles comprising the same

Abstract

Disclosed herein is an apparatus for use downhole comprising an expandable component; a support member that has a selected corrosion rate; wherein the support member is disposed on the expandable component; where the support member comprises a plurality of particles fused together; the particles comprising a core comprising a first metal; and a first layer disposed upon the core; the first layer comprising a second metal; the first metal having a different corrosion potential from the second metal; the first layer comprising a third metal having a different corrosion potential from the first metal.

1 . A method comprising:
 disposing a layer of a second metal upon a particle that comprises a first metal;   where the first metal has a different corrosion potential from the second metal;   disposing a third metal upon the second metal; the third metal having a different corrosion potential from the first metal; and   sintering the particles to form a billet.   
     
     
         2 . The method of  claim 1 , where disposing of the second metal on the first metal is conducted using vapor deposition. 
     
     
         3 . The method of  claim 1 , where the disposing of the third metal on the second metal is conducted using vapor deposition. 
     
     
         4 . The method of  claim 1 , further comprising forging the billet or extruding the billet.