Invention Grant
- Patent Title: Ion-exchanged glass of high surface compression and shallow depth of layer with high resistance to radial crack formation from vickers indentation
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Application No.: US14547456Application Date: 2014-11-19
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Publication No.: US09783452B2Publication Date: 2017-10-10
- Inventor: Jonathan David Pesansky , Chandan Kumar Saha , Trevor E Wilantewicz
- Applicant: Corning Incorporated
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Main IPC: C03C3/097
- IPC: C03C3/097 ; C03C21/00 ; C03C3/091 ; C03C3/083 ; C03C3/085 ; C03C3/087 ; C03C3/093

Abstract:
Disclosed are alkali aluminosilicate glasses having unexpected resistance to indentation cracking. The glasses obtain this high resistance as a result of a high level of surface compression accompanied by a shallow depth of layer. The advantaged glasses show greater resistance to radial crack formation from Vickers indentation than glasses with the same compressive stress, but higher depths of layer.
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