公开(公告)号：US20210276913A1

公开(公告)日：2021-09-09

申请号：US17049600

申请日：2019-04-18

Applicant: CORNING INCORPORATED

Inventor： Indrajit Dutta ,  Mathieu Gerard Jacques Hubert ,  Timothy James Kiczenski ,  Marion Novitovic-Dunn

IPC: C03B32/02 ,  C03C4/02

Abstract: A process for making a glass-ceramic article includes annealing an as-formed glass article formed from a glass-ceramic composition at a first temperature for a duration sufficient to nucleate a plurality of nuclei within a vitreous matrix of the as-formed glass article and forming a post-nucleation glass article. The process also includes annealing the post-nucleation glass article at a second temperature for a duration sufficient to grow crystalline grains within the vitreous matrix of the post-nucleation glass article and forming a glass-ceramic article. The first temperature is less than a glass transition temperature for the glass-ceramic composition and the second temperature is greater than the glass transition temperature for the glass-ceramic composition.