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公开(公告)号：US20210387905A1
公开(公告)日：2021-12-16
申请号：US17461126
申请日：2021-08-30
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07t to a depth of about 0.26t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18t to about 0.25t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.
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公开(公告)号：US11014848B2
公开(公告)日：2021-05-25
申请号：US16510850
申请日：2019-07-12
Applicant: CORNING INCORPORATED
Inventor： Carol Ann Click , James Howard Edmonston , Qiang Fu , Jill Marie Hall , Mathieu Gerard Jacques Hubert , Dhananjay Joshi , Andrew Peter Kittleson , Katherine Weber Kroemer , Galan Gregory Moore , Rohit Rai , John Richard Ridge , John Robert Saltzer, Jr. , Charlene Marie Smith , Erika Lynn Stapleton , Matthew Daniel Trosa , Ljerka Ukrainczyk , Shelby Kerin Wilson , Bin Yang , Zheming Zheng
Abstract: A glass ceramic article including a lithium disilicate crystalline phase, a petalite crystalline phased, and a residual glass phase. The glass ceramic article has a warp (μm) 0.91×10(2-0.03t) of electromagnetic radiation wavelengths from 450 nm to 800 nm, where t is the thickness of the glass ceramic article in mm.
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公开(公告)号：US20200017398A1
公开(公告)日：2020-01-16
申请号：US16510850
申请日：2019-07-12
Applicant: CORNING INCORPORATED
Inventor： Carol Ann Click , James Howard Edmonston , Qiang Fu , Jill Marie Hall , Mathieu Gerard Jacques Hubert , Dhananjay Joshi , Andrew Peter Kittleson , Katherine Weber Kroemer , Galan Gregory Moore , Rohit Rai , John Richard Ridge , John Robert Saltzer, JR. , Charlene Marie Smith , Erika Lynn Stapleton , Matthew Daniel Trosa , Ljerka Ukrainczyk , Shelby Kerin Wilson , Bin Yang , Zheming Zheng
Abstract: A glass ceramic article including a lithium disilicate crystalline phase, a petalite crystalline phased, and a residual glass phase. The glass ceramic article has a warp (μm) 0.91×10(2-0.03t) of electromagnetic radiation wavelengths from 450 nm to 800 nm, where t is the thickness of the glass ceramic article in mm.
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