Granted Patent
B2
US 12,590,026 · App. 18/121,689 · Granted Mar 31, 2026
Manufacturing tungsten bronze glass ceramic
Inventors:
Matthew John Dejneka (Corning, NY); Jesse Kohl (Horseheads, NY); Mallanagouda Dyamanagouda Patil (Corning, NY)
Assignee:
CORNING INCORPORATED
C03C3/091C03C3/122C03C3/15C03C4/065C03C4/082C03C4/085C03C10/0009G02B5/208C03C3/089C03C4/18C03C10/0018C03C10/0027C03C10/0054C03C21/002C03C2204/00
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Abstract
Manufacturing glass ceramic materials comprises ceramming a glass to grow a crystalline tungsten bronze phase comprising nanoparticles having a formula M x WO 3 , where M includes a dopant cation, and where 0<x<1.
Claims (31)
1 . A method of manufacturing a glass-ceramic article, comprising:
heat-treating a glass to grow crystals of M x WO 3 , where 0<x<1 and M comprises H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and/or U,
wherein at least prior to the heat-treating the glass comprises, in terms of constituent oxides, SiO 2 , B 2 O 3 , Al 2 O 3 , WO 3 , and R 2 O, where R 2 O is a sum of alkali metal oxides Na 2 O, K 2 O, Cs 2 O, and/or Rb 2 O in the glass, and
wherein the Al 2 O 3 and R 2 O in mol % of the glass at least prior to the heat-treating are such that −10≤(R 2 O−Al 2 O 3 )≤0.1.
2 . The method of claim 1 , wherein at least prior to the heat-treating the glass comprises in mol %: 0≤(R 2 O/WO 3 )≤4.
3 . The method of claim 1 , wherein at least prior to the heat-treating the glass comprises in mol %: 1≤[(R 2 O+Al 2 O 3 )/WO 3 ]≤6.
4 . The method of claim 1 , wherein duration of the heat treating is at least 0.2 hours.
5 . The method of claim 1 , wherein temperature of the heat treating is at least 500° C.
6 . The method of claim 1 , wherein the glass-ceramic transmits greater than 1% of at least one 50 nm-wide wavelength band of light over a 1 mm path in a range from 400 to 700 nm.
7 . The method of claim 1 , wherein the glass-ceramic transmits less than 5% of light over a 1 mm path at 370 nm or less in wavelength.
8 . The method of claim 1 , wherein the glass-ceramic transmits less than 10% of at least one 50 nm-wide wavelength band of light over a 1 mm path in a range from 700 to 2500 nm.
9 . The method of claim 1 , further comprising bleaching or erasing at least some of the crystals of M x WO 3 in at least a portion of the article.
10 . The method of claim 9 , wherein the bleaching comprises further heating the portion.
11 . The method of claim 10 , wherein the further heating comprises using a laser for the further heating.
12 . The method of claim 10 , wherein the further heating comprises heating the portion to between 685° C. and 740° C. for 5 minutes.
13 . The method of claim 1 , wherein after the heat-treating the glass-ceramic transmits greater than 1% of at least one 50 nm-wide wavelength band of light over a 1 mm path in a range from 400 to 700 nm.
14 . The method of claim 13 , wherein duration of the heat-treating is at least 0.2 hours and wherein temperature of the heat-treating is at least 500° C.
15 . The method of claim 1 , wherein the glass-ceramic transmits greater than 1% of at least one 50 nm-wide wavelength band of light over a 1 mm path in a range from 400 to 700 nm.
16 . The method of claim 1 , wherein the glass-ceramic transmits less than 5% of light over a 1 mm path at 370 nm in wavelength.
17 . The method of claim 1 , wherein at least prior to the heat-treating the glass comprises in mol %: 0< (Na 2 O+K 2 O+Cs 2 O+Rb 2 O)≤9.
18 . A method of manufacturing a glass-ceramic article, comprising:
heat-treating a glass to grow crystals of M x WO 3 , where 0<x<1 and M comprises H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and/or U,
wherein at least prior to the heat-treating the glass comprises, in terms of constituent oxides, SiO 2 , B 2 O 3 , Al 2 O 3 , and WO 3 .
19 . A method of manufacturing a glass-ceramic article, comprising:
heat-treating a glass to grow crystals of M x WO 3 , where 0<x<1 and M comprises an alkali metal ion,
wherein at least prior to the heat-treating the glass comprises, in terms of constituent oxides, SiO 2 , B 2 O 3 , Al 2 O 3 , and WO 3 .
20 . A method of manufacturing a glass-ceramic article, comprising:
heat-treating a glass to grow crystals of M x WO 3 , where 0<x<1 and M comprises H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and/or U,
wherein at least prior to the heat-treating the glass comprises, in terms of constituent oxides, SiO 2 , B 2 O 3 , Al 2 O 3 , WO 3 , and R 2 O, where R 2 O is a sum of alkali metal oxides Na 2 O, K 2 O, Cs 2 O, and/or Rb 2 O in the glass,
wherein at least prior to the heat-treating the glass comprises in mol %: 0< (Na 2 O+K 2 O+Cs 2 O+Rb 2 O)≤9, and
wherein the Al 2 O 3 and R 2 O in mol % of the glass at least prior to the heat-treating are such that −10≤(R 2 O−Al 2 O 3 )≤0.1.
Continuity (6)
Provisional Application
62352602
· Jun 21, 2016
Provisional Application
62351616
· Jun 17, 2016
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