Tungsten ring composition

Abstract

A method of forming a jewelry article comprises the steps of (a) providing a powder mixture comprising tungsten and one or more of: titanium carbide, chromium carbide, nickel, molybdenum, vanadium carbide and iron, (b) placing the powder mixture in a mold and (c) applying sufficient pressure and temperature to the powder mixture to form a solid jewelry article.

1 . A method of forming a jewelry article comprising:
 providing a powder mixture comprising tungsten and one or more of: titanium carbide,   chromium carbide, nickel, molybdenum, vanadium carbide and iron;   placing the powder mixture in a mold; and   applying sufficient pressure and temperature to the powder mixture to form a solid   jewelry article.   
     
     
         2 . The method of  claim 1 , wherein powder composition comprises less than 50% tungsten by weight. 
     
     
         3 . The method of  claim 1 , wherein the powder composition comprises about 21-22% titanium carbide by weight. 
     
     
         4 . The method of  claim 1 , wherein the powder mixture comprises about 19-21% chromium carbide by weight. 
     
     
         5 . The method of  claim 1 , wherein the powder mixture comprises about 22-23% nickel by weight. 
     
     
         6 . The method of  claim 1  wherein the powder mixture comprises about 7-8% molybdenum and vanadium carbide combined, by weight. 
     
     
         7 . The method of  claim 1 , wherein the powder mixture comprises about 2-3% iron by weight. 
     
     
         8 . The method of  claim 1 , wherein the mold comprises a cavity having an annular configuration. 
     
     
         9 . The method of  claim 1 , further comprising the step of adding a rubber material to the powder mixture before placing said mixture in the mold. 
     
     
         10 . The method of  claim 9 , wherein the rubber material comprises SBS. 
     
     
         11 . The method of  claim 10 , further comprising sifting the powder mixture before adding the rubber material. 
     
     
         12 . A jewelry article formed according to any one of  claims 1  to  11 . 
     
     
         13 . A jewelry ring formed according to the method of  claim 8 . 
     
     
         14 . A jewelry article comprising about 20-50% by weight tungsten and balance titanium carbide, chromium carbide, nickel, molybdenum, vanadium carbide and iron. 
     
     
         15 . The jewelry article of  claim 14 , wherein said article comprises about 21-22% titanium carbide by weight. 
     
     
         16 . The jewelry article of  claim 14 , wherein said article comprises about 19-21% chromium carbide by weight. 
     
     
         17 . The jewelry article of  claim 14 , wherein said article comprises about 22-23% nickel by weight. 
     
     
         18 . The jewelry article of  claim 14 , wherein said article comprises 7-8% molybdenum by weight. 
     
     
         19 . The jewelry article of  claim 14 , wherein said article comprises 2-3% iron by weight. 
     
     
         20 . The jewelry article of  claim 14 , wherein said article has a density of about 8-9 g/cm 3 .