Ni and cu free pd-based metallic glasses

Abstract

The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by A a B b {(Si) 100-c (D) c } d , where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.

1 . A metallic glass comprising a biocompatible alloy represented by Formula 1:
   A a B b {(Si) 1-c (D) c } d   (1)
   wherein:
 A is Pd, or a combination of Pd and Pt, 
 B is selected from the group consisting of Ag, Au, Co, Fe, and combinations thereof, 
 D is selected from the group consisting of P, Ge, B, S, and combinations thereof, 
 a is an atomic fraction ranging from about 0.60 to about 0.90, 
 b is an atomic fraction ranging from about 0.02 to about 0.18, 
 c is an atomic fraction greater than 0 and less than 1, and 
 d is an atomic fraction ranging from about 0.05 to about 0.25. 
   
     
     
         2 . The metallic glass of  claim 1 , wherein a is 0.775, b is 0.06, and d is 0.165. 
     
     
         3 . The metallic glass of  claim 1 , a is 0.755, b is 0.08, and d is 0.165. 
     
     
         4 . The metallic glass of  claim 1 , wherein B is selected from the group consisting of Au, Ag and combinations thereof. 
     
     
         5 . The metallic glass of  claim 1 , wherein D is selected from the group consisting of P, Ge and combinations thereof. 
     
     
         6 . The metallic glass of  claim 1 , wherein the biocompatible alloy is selected from the group consisting of Pd 77.5 Ag 6 Si 14 P 2.5 , Pd 77.5 Ag 6 Si 11.5 P 5 , Pd 77.5 Ag 6 Si 9 P 7.5 , Pd 77.5 Ag 6 Si 6.5 P 10 , Pd 77.5 Ag 6 Si 4 P 12.5 , Pd 79.5 Ag 4 Si 9 P 7.5 , Pd 78.5 Ag 5 Si 11.5 P 5 , Pd 76.5 Ag 7 Si 11.5 P 5 , Pd 75.5 Ag 8 Si 9 P 7.5 , Pd 75.5 Ag 8 Si 11.5 P 5 , Pd 75 Ag 8.5 Si 11.5 P 5 , Pd 73.5 Ag 10 Si 11.5 P 5 , Pd 76.85 Ag 8.14 Si 10.45 P 4.55 , Pd 74.14 Ag 7.86 Si 12.55 P 5.45 , Pd 75.5 Ag 8 Si 9 Ge 2.5 P 5 , Pd 75.5 Ag 8 Si 9.5 Ge 2 P 5 , Pd 75 Ag 8.5 Si 9.5 Ge 2 P 5 , Pd 76 Ag 7.5 Si 9.5 Ge 2 P 5 , Pd 75.5 Ag 8 Si 10.5 Ge 2 P 4 , Pd 75.5 Ag 8 Si 8.5 Ge 2 P 6 , Pd 75.5 Ag 8 Si 6.5 Ge 5 P 5 , Pd 75.5 Ag 8 Si 4 Ge 7.5 P 5 , Pd 75.5 Ag 8 Si 2.5 Ge 9 P 5 , Pd 73 Ag 8 Ge 14 P 5 , Pd 75.5 Ag 8 Ge 11.5 P 5 , Pd 77 Ag 8 Ge 10 P 5 , Pd 75.5 Ag 8 Si 9 P 5 S 2.5 , Pd 75.5 Ag 8 Si 2.5 Ge 7 P 5 S 2 , Pd 79 Au 4 Si 12 P 5 , Pd 79 Au 4 Si 12 Ge 5 , Pd 79 Au 4 Si 9.5 Ge 2.5 P 5 , and Pd 75.5 Ag 8 Si 2.5 Ge 7 P 5 S 2 . 
     
     
         7 . A three-dimensional object formed of a metallic glass comprising a biocompatible alloy represented by Formula 1:
   A a B b {(Si) 1-c (D) c } d   (1)
   wherein:
 A is Pd, or a combination of Pd and Pt, 
 B is selected from the group consisting of Ag, Au, Co, Fe, and combinations thereof, 
 D is selected from the group consisting of P, Ge, B, S, and combinations thereof, 
 a is an atomic fraction ranging from about 0.60 to about 0.90, 
 b is an atomic fraction ranging from about 0.02 to about 0.18, 
 c is an atomic fraction greater than 0 and less than 1, and 
 d is an atomic fraction ranging from about 0.05 to about 0.25. 
   
     
     
         8 . The three dimensional object of  claim 7 , wherein the three-dimensional object has a critical casting thickness greater than about 1 mm. 
     
     
         9 . The three-dimensional object of  claim 7 , wherein the three-dimensional object has a critical casting thickness ranging from about 1 mm to about 5 mm. 
     
     
         10 . The three-dimensional object of  claim 7 , wherein the three-dimensional object has a critical casting thickness ranging from about 1 mm to about 4 mm. 
     
     
         11 . The three-dimensional Object of  claim 7 , wherein the three-dimensional object is a biomedical component. 
     
     
         12 . The three-dimensional object of  claim 11 , wherein the biomedical component is a dental or orthodontic implant or fixation component. 
     
     
         13 . The three-dimensional object of  claim 11 , wherein the biomedical component is an orthopedic implant or fixation component. 
     
     
         14 . The three-dimensional object of  claim 7 , wherein the three-dimensional object is a jewelry article. 
     
     
         15 . The three-dimensional object of  claim 7 , wherein a is 0.775, b is 0.06, and d is 0.165. 
     
     
         16 . The three-dimensional object of  claim 7 , wherein a is 0.755, b is 0.08, and d is 0.165. 
     
     
         17 . The three-dimensional object of  claim 7 , wherein B is selected from the group consisting of Au, Ag and combinations thereof. 
     
     
         18 . The three-dimensional object of  claim 7 , wherein D is selected from the group consisting of P, Ge and combinations thereof. 
     
     
         19 . The three-dimensional object of  claim 7 , wherein the biocompatible alloy is selected from the group consisting of Pd 77.5 Ag 6 Si 14 P 2.5 , Pd 77.5 Ag 6 Si 11.5 P 5 , Pd 77.5 Ag 6 Si 9 P 7.5 , Pd 77.5 Ag 6 Si 6.5 P 10 , Pd 77.5 Ag 6 Si 4 P 12.5 , Pd 79.5 Ag 4 Si 9 P 7.5 , Pd 78.5 Ag 5 Si 11.5 P 5 , Pd 76.5 Ag 7 Si 11.5 P 5 , Pd 75.5 Ag 8 Si 9 P 7.5 , Pd 75.5 Ag 8 Si 11.5 P 5 , Pd 75 Ag 8.5 Si 11.5 P 5 , Pd 73.5 Ag 10 Si 11.5 P 5 , Pd 76.85 Ag 8.14 Si 10.45 P 4.55 , Pd 74.14 Ag 7.86 Si 12.55 P 5.45 , Pd 75.5 Ag 8 Si 9 Ge 2.5 P 5 , Pd 75.5 Ag 8 Si 9.5 Ge 2 P 5 , Pd 75 Ag 8.5 Si 9.5 Ge 2 P 5 , Pd 76 Ag 7.5 Si 9.5 Ge 2 P 5 , Pd 75.5 Ag 8 Si 10.5 Ge 2 P 4 , Pd 75.5 Ag 8 Si 8.5 Ge 2 P 6 , Pd 75.5 Ag 8 Si 6.5 Ge 5 P 5 , Pd 75.5 Ag 8 Si 4 Ge 7.5 P 5 , Pd 75.5 Ag 8 Si 2.5 Ge 9 P 5 , Pd 73 Ag 8 Ge 14 P 5 , Pd 75.5 Ag 8 Ge 11.5 P 5 , Pd 77 Ag 8 Ge 10 P 5 , Pd 75.5 Ag 8 Si 9 P 5 S 2.5 , Pd 75.5 Ag 8 Si 2.5 Ge 7 P 5 S 2 , Pd 79 Au 4 Si 12 P 5 , Pd 79 Au 4 Si 12 Ge 5 , Pd 79 Au 4 Si 9.5 Ge 2.5 P 5 , and Pd 75.5 Ag 8 Si 2.5 Ge 7 P 5 S 2 .