Corning Incorporated

Joshua James McCaslin

Vitor Marino Schneider

Yuhui Jin

Wei Sun

Jong Se Park

Jason Thomas Harris

Ross Johnson Stewart

Taylor Marie Wilkinson

Charandeep Singh

Naveen Prakash

Frangible glass articles having a fracture behavior that resists ejection of glass particles upon fracture. In some embodiments, the frangible glass articles can have a first surface region with a first elastic compressive stress energy per unit area of glass (W), a second surface region with a second elastic compressive stress energy per unit area of glass (W), and a central region with an elastic tensile stress energy per unit area of glass (W), where (W+W)&#x2212;W&#x2264;25 J/m. In some embodiments, the frangible glass articles can have a total load ratio (W/G) less than 6.5 and a total elastic compressive stress energy per unit area of glass (W) less than 60% of a total load (W), where: W=W+W, W=W+W, G=4G, and In some embodiments, the frangible glass articles can have a differential load ratio (W/G) less than

Frangible glass articles and methods of making the same

A glass article (and methods for forming the same) includes a glass body having first and second opposing primary surfaces and a thickness defined between the primary surfaces. The glass body includes a compressive stress region that includes: a surface stress of greater than about 900 MPa (compressive), a spike region having a first slope, and a tail region having a second slope. The spike region and the tail region can intersect at a knee region having a stress of greater than about 35 MPa (compressive), wherein the stress at the knee region is defined as the point where the asymptotic extrapolation of the spike region and the tail region intersect. The first slope of the spike region can be steeper than about &#x2212;30 MPa/&#x3bc;m.

Strengthened glass articles and methods of forming the same

Glass-based articles comprise stress profiles providing improved scratch resistance. The glass-based articles comprise: a thickness t; a lithium aluminosilicate composition; and a molar ratio of sodium oxide (NaO) to lithium oxide (LiO) that is less than or equal to 0.63 at the center of the glass-based article. The articles have a molar ratio of sodium dioxide (NaO) to lithium dioxide (LiO) in a post-spike near region that is greater than or equal to 0.9 and/or less than 1.5.

Scratch resistant glass and method of making

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Beaver Dams, NY, United States of America

Joshua James McCaslin