Toughened bulk metallic glass in golf club faces and other structural applications

Abstract

According to an embodiment, disclosed is a sport equipment, comprising: a golf club comprising bulk metallic glass (BMG) having one or more layers, wherein at least one layer comprises a three-dimensional geometric structure having cells, wherein a part of cells has an arched dome bottom. In another embodiment, disclosed is a method comprising taking a mold and injecting a bulk metallic glass (BMG) on the mold using an injection molding technique to form the BMG into a three-dimensional geometric structure having plurality of cells.

1 . A sport equipment, comprising: a golf club comprising a golf club head comprising a first substrate comprising bulk metallic glass (BMG) having one or more layers, wherein at least one layer of the said substrate comprises a three-dimensional geometric structure having cells, wherein a part of cells has an arched dome structure. 
     
     
         2 . The sport equipment of  claim 1 , wherein the three-dimensional geometric structure comprises a honeycomb structure. 
     
     
         3 . The sport equipment of  claim 2 , wherein thickness of a wall of the cells of the honeycomb structure is at least 0.5 mm. 
     
     
         4 . The sport equipment of  claim 1 , wherein the BMG comprises a BMG composite. 
     
     
         5 . The sport equipment of  claim 4 , wherein the said composite comprises a second substrate comprising an alloy, a metal, a synthetic material, a polymer, or a mixture thereof. 
     
     
         6 - 9 . (canceled) 
     
     
         10 . The sport equipment of  claim 5 , wherein the second substrate is configured to withstand a temperature of around 450° C. 
     
     
         11 . (canceled) 
     
     
         12 . The sport equipment of  claim 2 , wherein a part of the cells of the honeycomb structure is at least partially filled with a filling material. 
     
     
         13 . The sport equipment of  claim 12 , wherein the filling material comprises a polymer or a fluid. 
     
     
         14 . The sport equipment of  claim 13 , wherein the fluid comprises a shear reducing fluid, a polymer, silicone, or an epoxy resin, or a combination thereof. 
     
     
         15 - 16 . (canceled) 
     
     
         17 . The sport equipment of  claim 1 , wherein the three-dimensional geometric structure comprises an injection molded structure. 
     
     
         18 . (canceled) 
     
     
         19 . The sport equipment of  claim 2 , wherein a ratio of length to thickness of the cells of the honeycomb structure is less than 0.5. 
     
     
         20 - 21 . (canceled) 
     
     
         22 . A method comprising taking a mold and injecting a first substrate comprising a bulk metallic glass (BMG) on the mold using an injection molding technique to mold into a three-dimensional geometric structure having plurality of cells. 
     
     
         23 . The method of  claim 22 , wherein the three-dimensional geometric structure comprises a honeycomb structure. 
     
     
         24 . The method of  claim 23 , wherein a part of cells of the honeycomb structure have arched dome structure. 
     
     
         25 . The method of  claim 22 , wherein the first substrate further comprises a metal, a crystalline alloy, a fully amorphous alloy or a partially amorphous alloy. 
     
     
         26 . (canceled) 
     
     
         27 . The method of  claim 22 , further comprising adding a second substrate. 
     
     
         28 . (canceled) 
     
     
         29 . The method of  claim 27 , wherein the second substrate is configured to withstand a temperature of about 400° C. or more. 
     
     
         30 - 34 . (canceled) 
     
     
         35 . The method of  claim 27 , further comprising adding a fluid between the first substrate and the second substrate. 
     
     
         36 - 41 . (canceled) 
     
     
         42 . The method of  claim 23 , wherein a ratio of length to thickness of the cells of the honeycomb structure is less than 0.5. 
     
     
         43 . The method of  claim 22 , wherein thickness of a wall of a cell is at least 0.5 mm. 
     
     
         44 - 45 . (canceled)