公开(公告)号：US20250002402A1

公开(公告)日：2025-01-02

申请号：US18748553

申请日：2024-06-20

Applicant: CORNING INCORPORATED

Inventor： Michael Morris Clark ,  Jeffrey Alan Decker ,  Xiaoju Guo ,  Zhenhua Guo ,  Mathieu Gerard Jacques Hubert ,  Peter Joseph Lezzi ,  Pascale Oram ,  Nicholas John Tostanoski ,  Bin Zhu

IPC: C03C21/00 ,  C03C3/097 ,  H05K5/03

Abstract: A glass composition can include from 60 mol % to 69 mol % SiO2, from 10 mol % to 18 mol % Al2O3, from 2.3 mol % to 6.9 mol % Li2O, from 2.1 mol % to 6.7 mol % Na2O, and from 1.1 mol % to 9 mol % alkaline earth metal oxides. The glass composition can comprise a liquidus viscosity greater than or equal to 150 kP. The glass composition can include from 0.25 mol % to 1 mol % K2O, from 0.5 mol % to 4 mol % P2O5, and/or 0.5 mol % to 3.6 mol % B2O3. The glass composition can form anorthoclase or a feldspar solid solution. The glass composition can include MgO+Li2O−(CaO+SrO+Na2O+K2O) is from −0.5 to −4. The glass composition can include volume electrical resistivity is greater than or equal to 2×1015 Ohm-centimeters. The glass composition may have a fracture toughness of greater than or equal 0.75 MPa√m.