Edge and corner-strengthened articles and methods for making same
A strengthened article (and methods for making it) is provided that includes a glass, glass-ceramic or ceramic, having a plurality of primary surfaces, side edges, and a thickness. The article also includes a compressive stress region extending from one of the primary surfaces to a first selected de...
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| creator | Ahmed, Izhar Zahoor Shih, Po-Jen Slater, Irene Marjorie Roussev, Rostislav Vatchev Hu, Guangli Zhang, Bin Zoubi, Sam Samer Subramanian, Vijay |
| description | A strengthened article (and methods for making it) is provided that includes a glass, glass-ceramic or ceramic, having a plurality of primary surfaces, side edges, and a thickness. The article also includes a compressive stress region extending from one of the primary surfaces to a first selected depth in the article; a central region extending from a boundary located at a depth of 200 μm from the primary surfaces and the edges to the centroid of the article; and an outer region extending between the primary surfaces and edges to the boundary. Further, the maximum principal stress within the outer region is no more than two times the maximum principal stress within the central region. The primary surfaces and side edges may define a plurality of corners, and the corners may be defined by a chamfer, a fillet, or a curved shape. |
| format | Patent |
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| subjects | CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY MINERAL OR SLAG WOOL PRINTED CIRCUITS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | Edge and corner-strengthened articles and methods for making same |
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