Low iron, high redox ratio, and high iron, high redox ratio, soda-lime-silica glasses and methods of making same
A glass has a basic soda-lime-silica glass portion, and a colorant portion, the colorant portion including total iron as Fe 2 O 3 in the range of at least 0.02 to no more than 0.10 weight percent, a redox ratio in the range of 0.20 to 0.6, and tin metal providing tin in an amount within the range of greater than 0.005 to 5.0 weight percent; the glass product has a tin side and an opposite air side, said tin side of the glass having a higher concentration of tin than the air side, the air side having a uniform concentration of tin from the air side of the glass product towards the tin side of the glass product.
1 . A glass, comprising:
a basic soda-lime-silica glass portion, wherein the basic soda-lime-silica glass portion comprises:
SiO 2
65-80 wt. %
Na 2 O
10-20 wt. %
CaO
5-15 wt. %
MgO
0-8 wt. %
Al 2 O 3
0-5 wt. %
K 2 O
0-5 wt. %;
a colorant portion;
total iron as Fe 2 O 3 in the range of greater than 0.02 to less than 0.10 weight percent;
a redox ratio in the range of 0.5 to 0.6, and
tin metal providing tin in an amount within the range of greater than 0.005 to 5.0 weight percent;
wherein the glass product has a tin side and an opposite air side, said tin side of the glass having a higher concentration of tin than the air side, the air side having a uniform concentration of tin from the air side of the glass product towards the tin side of the glass product.
2 . The glass according to claim 1 , wherein the colorant portion is selected from the group consisting of CoO, Se, NiO, Cl, V 2 O 5 , CeO 2 , Cr 2 O 3 , TiO 2 , Er 2 O 3 ; Nd 2 O 3 , MnO 2 , La 2 O 3 , CuO, and combinations thereof.
3 . The glass according to claim 2 , wherein the colorant portion comprises CoO, Nd 2 O 3 , CuO, or combinations thereof.
4 . The glass according to claim 1 , wherein the tin metal provides tin in an amount within the range of 0.1-4 weight percent.
5 . The glass according to claim 4 , wherein the tin metal provides tin in an amount within the range of 0.4-3 weight percent.
6 . The glass according to claim 1 , wherein the glass product, having a thickness of 2 mm to 25 mm has an LTA of greater than or equal to 85%.
7 . The glass according to claim 6 , wherein the glass product has an LTA of at least 91%.
8 . The glass according to claim 1 , wherein the glass product having a thickness of 2 mm to 25 mm has a dominant wavelength in the range of 480 to 510 nanometers.
9 . The glass according to claim 1 , wherein the glass product has an excitation purity in the range of 0.10 to 0.15.
10 . The glass according to claim 1 , wherein the glass product having a thickness of 2 mm to 25 mm has a TSUV in the range of 85 to 93%.
11 . The glass according to claim 1 , wherein the glass product having a thickness of 2 mm to 25 mm has a TSIR in the range of 85 to 90%.
12 . The glass according to claim 1 , wherein the glass product having a thickness of 2 mm to 25 mm has a TSET in the range of 87 to 91% at a thickness of 5.6 mm.
13 . The glass according to claim 1 , wherein the glass product has a melting temperature of at most 2650° F.