	US 12,077,464 B2
	Setter plates and methods of ceramming glass articles using the same
Shuo Cui, Burlington, MA (US); Jill Marie Hall, Elmira, NY (US); John Robert Saltzer, Jr., Beaver Dams, NY (US); Richard Alan Shelleman, Horseheads, NY (US); and Bin Yang, Dublin, OH (US)
Assigned to Corning Incorporated, Corning, NY (US)
Appl. No. 17/260,349
Filed by CORNING INCORPORATED, Corning, NY (US)
PCT Filed Jul. 3, 2019, PCT No. PCT/US2019/040568 § 371(c)(1), (2) Date Jan. 14, 2021, PCT Pub. No. WO2020/018290, PCT Pub. Date Jan. 23, 2020.
Claims priority of provisional application 62/749,808, filed on Oct. 24, 2018.
Claims priority of provisional application 62/698,582, filed on Jul. 16, 2018.
Prior Publication US 2021/0292220 A1, Sep. 23, 2021
Int. Cl. C03B 32/02 (2006.01)

CPC C03B 32/02 (2013.01)

13 Claims

1. A method of ceramming a plurality of glass sheets comprising:

positioning the plurality of glass sheets in a stack between a first setter plate and a second setter plate in a glass stack configuration; and

exposing the glass stack configuration to a ceramming cycle to ceram the plurality of glass sheets into glass ceramic sheets,

wherein the first setter plate and the second setter plate each have:

a specific heat capacity of from about 670 J/kg*K to about 850 J/kg*K, as measured in accordance with ASTM E1461 at room temperature;

a bulk density of greater than about 2500 kg/m³, as measured in accordance with ASTM C20; and/or

a thermal diffusivity of greater than about 2.50×10⁻⁵m²/s, and

further wherein at least one of the first setter plate be second setter plate has a porosity of less than about 1% and/or comprises at least 85 wt % reaction bonded silicon carbide.