Abstract: A multi-layer and method of making the same are provided. The multi-layer, such as a sensor, can include a high strength glass overlay and a lamination layer on a substrate layer. The overlay can be less than 250 micrometers thick and have at least one tempered surface incorporating a surface compression layer of at least 5 micrometers deep and a surface compressive stress of at least 200 MPa. The overlay can exhibit a puncture factor of at least 3000 N/?m2 at B10 (10th percentile of the probability distribution of failure) in a multi-layer structure, an apparent thickness of less than 0.014 mm, and a pencil hardness greater than 6H. The method can include ion-exchange tempering at least one major surface of a glass sheet, light etching the major surface to remove flaws and laminating the glass sheet on the tempered and lightly etched major surface to a substrate layer.

Abstract: A multi-layer and method of making the same are provided. The multi-layer, such as a sensor, can include a high strength glass overlay and a lamination layer on a substrate layer. The overlay can be less than 250 micrometers thick and have at least one tempered surface incorporating a surface compression layer of at least 5 micrometers deep and a surface compressive stress of at least 200 MPa. The overlay can exhibit a puncture factor of at least 3000 N/?m2 at B10 (10thpercentile of the probability distribution of failure) in a multi-layer structure, an apparent thickness of less than 0.014 mm, and a pencil hardness greater than 6H. The method can include ion-exchange tempering at least one major surface of a glass sheet, light etching the major surface to remove flaws and laminating the glass sheet on the tempered and lightly etched major surface to a substrate layer.

Abstract: A method for strengthening a glass article and strengthened glass articles formed from the method are disclosed. The method includes contacting the glass article with an ion exchange solution for about 4 hours to about 8 hours. The ion exchange solution has a temperature from about 370° C. to about 410° C. The ion exchange solution includes about 65 mol. % to about 75 mol. % KNO3 and from about 25 mol. % to about 35 mol. % NaNO3 Prior to the contacting, the glass article has a composition of about 55 mol. % to about 75 mol. % SiO2, about 8 mol. % to about 15 mol. % Al2O3, about 5 mol. % to about 12 mol. % Na2O, about 8 mol. % to about 14 mol. % Li2O; 0 mol. % to about 1 mol. % K2O, 0 mol. % to about 2 mol. % MgO, 0 mol. % to about 2 mol. % CaO, and 0 mol. % to about 2 mol. % ZrO2.