The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2023
Filed:
Jul. 15, 2019
Corning Incorporated, Corning, NY (US);
Carol Ann Click, Corning, NY (US);
Indrajit Dutta, Horseheads, NY (US);
Ozgur Gulbiten, Painted Post, NY (US);
Jill Marie Hall, Elmira, NY (US);
Mathieu Gerard Jacques Hubert, Corning, NY (US);
Andrew Peter Kittleson, Honeoye Falls, NY (US);
Rohit Rai, Painted Post, NY (US);
John Robert Saltzer, Jr., Beaver Dams, NY (US);
Matthew Daniel Trosa, Horseheads, NY (US);
Zheming Zheng, Horseheads, NY (US);
CORNING INCORPORATED, Corning, NY (US);
Abstract
A method for ceramming a glass article to a glass-ceramic includes placing a glass article into a heating apparatus, and heating the glass article to a first hold temperature at a first predetermined heating rate. The glass article is held at the first hold temperature for a first predetermined duration. The viscosity of the glass article is maintained within log viscosity ±1.0 poise during the first predetermined duration. The glass article is then heated from the first hold temperature to a second hold temperature at a second predetermined heating rate. The glass article is held at the second hold temperature for a second duration. A density of the glass article is monitored from the heating of the glass article from the first hold temperature through the second duration, and the second duration is ended when an absolute value of a density rate of change of the glass article is less than or equal to 0.10 (g/cm)/min.