公开(公告)号：US20210292220A1

公开(公告)日：2021-09-23

申请号：US17260349

申请日：2019-07-03

Applicant: CORNING INCORPORATED

Inventor： SHUO CUI ,  Jill Marie Marie ,  John Robert Saltzer ,  Richard Alan Shelleman ,  Bin Yang

IPC: C03B32/02

Abstract: Glass stack configurations including a carrier plate, setter plates, and glass sheets for thermal treatment of the glass sheets to form glass ceramic articles are provided. The glass stacking configurations and components described herein are selected to improve thermal uniformity throughout a glass stack during ceramming processes while maintaining or even reducing the stresses in the resultant glass ceramic article. Accordingly, the glass ceramic articles made according to the various embodiments described herein exhibit improved optical qualities and less warp than glass ceramic articles made according to conventional processes. Various embodiments of carrier plates, setter plates, parting agent compositions, and methods of stacking glass sheets are described.

公开(公告)号：US20210130228A1

公开(公告)日：2021-05-06

申请号：US17259327

申请日：2019-07-15

Applicant: CORNING INCORPORATED

Inventor： SHUO CUI ,  Jill Marie Hall ,  Gregory William Keyes ,  John Robert Saltzer

IPC: C03C17/00 ,  C03C17/25 ,  C03C17/22

Abstract: Glass stack configurations including a carrier plate, setter plates, and glass sheets for thermal treatment of the glass sheets to form glass ceramic articles are provided. The glass stacking configurations and components described herein are selected to improve thermal uniformity throughout a glass stack during ceramming processes while maintaining or even reducing the stresses in the resultant glass ceramic article. Accordingly, the glass ceramic articles made according to the various embodiments described herein exhibit improved optical qualities and less warp than glass ceramic articles made according to conventional processes. Various embodiments of carrier plates, setter plates, parting agent compositions, and methods of stacking glass sheets are described.