Glass-ceramic(s); associated formable and/or color-tunable, crystallizable glass(es); and associated process(es)

Patent metadata

Field	Value
Publication number	US-9403716-B2
Application number	US-201314038203-A
Country	US
Kind code	B2
Filing date	Sep 26, 2013
Priority date	Sep 27, 2012
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

Disclosed herein are one or more of formable and/or color-tunable, crystallizable glasses; formed and/or color-tuned glass-ceramics; IXable, formed and/or color-tuned glass-ceramics; IX, formed and/or color-tuned glass-ceramics; a machine or equipment including a formed and/or color-tuned glass-ceramic; a machine or equipment including an IXable, formed and/or color-tuned glass-ceramics; a machine or equipment including an IX, formed and/or color-tuned glass-ceramics; one or more processes for making formable, crystallizable glasses crystallizable; one or more processes for making formable and/or color-tunable, crystallizable glasses; one or more processes for making formed and/or color-tuned glass-ceramics; one or more processes for making IXable, formed and/or color-tuned glass-ceramics; one or more processes for making IX, formed and/or color-tuned glass-ceramics; and one or more processes for using any one of formable and/or color-tunable, crystallizable glasses; formed and/or color-tuned glass-ceramics; IXable, formed and/or color-tuned glass-ceramics; and/or IX, formed and/or color-tuned glass-ceramics.

First claim

We claim:

1. A glass-ceramic comprising:
a. less than about 15 wt % of one or more crystalline oxide phases; and
b. a composition comprising on an oxide basis in mol %:
a. about 50-76 SiO 2 ;
b. about 4-25 Al 2 O 3 ;
c. greater than 0 to about 14P 2 O 5 +B 2 O 3 ;
d. greater than 0 to about 33 R 2 O, wherein R 2 O comprises one or more of Li 2 O, Na 2 O, K 2 O, Rb 2 O, Cs 2 O, Cu 2 O, and Ag 2 O; and
e. greater than 0 to about 5 of one or more nucleating agents; and
f. optionally, from 0 to about 20 RO, wherein RO comprises one or more of MgO, CaO, SrO, BaO, and ZnO.

2. A glass-ceramic according to claim 1 , the composition further comprises on an oxide basis in mol % about 0-20 RO, and optionally:
a. about −4 to about 10 R 2 O+RO-Al 2 O 3 ; or
b. about −8 to about 8 R 2 O—Al 2 O 3 ; or
c. about −4 to about 10 R 2 O+RO-Al 2 O 3 and about −8 to about 8 R 2 O—Al 2 O 3 .

3. A glass-ceramic according to claim 1 , wherein the glass-ceramic has a transmission of less than about 40% at least one wavelength, λ T , in an interval of wavelengths from about 390 nm-2500 nm through an about 0.8 mm thickness.

4. A glass-ceramic according to claim 1 , wherein the glass-ceramic has an average value of Transmission over a λ interval from about 390 nm-2500 nm

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through an about 0.8 mm thickness of less than about 45%.

5. A glass-ceramic according to claim 1 , wherein the glass-ceramic has a transmission of less than about 90% at least one wavelength, λ T , in an interval of wavelengths from about 390 nm-2500 nm through a glass portion of an about 0.8 mm thickness.

6. A glass-ceramic according to claim 1 , wherein the glass-ceramic has an average value of Transmission over a λ interval from about 390 nm-2500 nm

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through a glass portion of an about 0.8 mm thickness of less than about 90%.

7. A glass-ceramic according to claim 1 , wherein the one or more crystalline oxide phases comprise crystallites having a size less that about 300 nm.

8. A glass-ceramic according to claim 1 , wherein the glass-ceramic is ion exchangeable and comprises:
a. at least one surface under a compressive stress (σs) of at least about 200 MPa in a compressively stressed layer having a depth of layer (DOL) of at least about 20 μm; or
b. at least one compressively stressed layer having a DOL of 20 μm up to about 150 μm for a part thickness of from about 0.7 millimeter (mm) up to 5 mm comprising.

9. A glass-ceramic according to claim 1 , further comprising a color presented in CIELAB color space coordinates for CIE illuminant D65 de

Assignees

• Corning Inc

Inventors

• Dejneka Matthew John
• Smith Charlene Marie

Classifications

• C03C4/0028

  for crystal glass, e.g. lead-free crystal glass · CPC title

• C03C3/093

  containing zinc or zirconium · CPC title

• C03C3/097

  containing phosphorus, niobium or tantalum · CPC title

• C03C14/006 Primary

  the non-glass component being in the form of microcrystallites, e.g. of optically or electrically active material · CPC title

• C03C10/0045

  containing SiO2, Al2O3 and MgO as main constituents · CPC title