Abstract: A glass-film laminate or article having a narrow failure distribution or a Weibull modulus of greater than 10. In embodiments, the glass-film laminate or article includes at least one first film disposed on a strengthened glass substrate. A first film or any additional films can exhibit an average strain-to-failure that is less than the strain-to-failure of the strengthened glass substrate. In embodiments, the first first film is adhered to the glass substrate such that the first film does not exhibit visible delamination from the glass substrate. Methods of forming glass-film laminates or articles with a desired strength level and narrow failure strength distrubution are also disclosed.

Abstract: Embodiments of a layered-substrate comprising a substrate and a layer disposed thereon, wherein the layered-substrate is able to withstand fracture when assembled with a device that is dropped from a height of at least 100 cm onto a drop surface, are disclosed. The layered-substrate may exhibit a hardness of at least about 10 GPa or at least about 20 GPa. The substrate may include an amorphous substrate or a crystalline substrate. Examples of amorphous substrates include glass, which is optionally chemically strengthened. Examples of crystalline substrates include single crystal substrates (e.g. sapphire) and glass ceramics. Articles and/or devices including such layered-substrate and methods for making such devices are also disclosed.

Abstract: Embodiments of durable, scratch resistant articles are described. The articles have coatings that provide specific reflectance, transmission, and/or color properties, as well as high hardness. Some embodiments have low reflectance, and high color. Some embodiments have high reflectance and neutral color. Some embodiments have high reflectance and high color. In some embodiments, the articles may be sunglasses with an optical coating, a scratch resistant mirror with an optical coating, or a consumer electronic product with an optical coating.

Abstract: A glass laminate structure comprising an external glass sheet and an internal glass sheet wherein one or both of the glass sheets comprises SiO2+B2O3+Al2O3?86.5 mol. %. and R2O—RO—Al2O3<about 5 mol. %. Exemplary glass sheet can comprise between about 69-80 mol. % SiO2, between about 6-12 mol. % Al2O3, between about 2-10 mol. % B2O3, between about 0-5 mol. % ZrO2, Li2O, MgO, ZnO and P2O5, between about 6-15 mol. % Na2O, between about 0-3 mol. % K2O and CaO, and between about 0-2 mol. % SnO2 to provide a mechanically robust and environmentally durable structure.

Abstract: An article that includes: a substrate comprising a glass, glass-ceramic or a ceramic composition and a primary surface; and a protective film disposed on the primary surface. Each of the substrate and the film comprises an optical transmittance of 20% or more in the visible spectrum. Further, the protective film comprises a hardness of greater than 10 GPa, as measured by a Berkovich nanoindenter, and a strain-to-failure of greater than 0.8%, as measured by a ring-on-ring test.

Abstract: An article that includes: a glass, glass-ceramic or ceramic substrate comprising a primary surface; at least one of an optical film and a scratch-resistant film disposed over the primary surface; and an easy-to-clean (ETC) coating comprising a fluorinated material that is disposed over an outer surface of the at least one of an optical film and a scratch-resistant film. The at least one of an optical film and a scratch-resistant film comprises an average hardness of 12 GPa or more. Further, the outer surface of the at least one of an optical film and a scratch-resistant film comprises a surface roughness (Rq) of less than 1.0 nm. Further, the at least one of an optical film and a scratch-resistant film comprises a total thickness of about 500 nm or more.

Abstract: Embodiments of durable, scratch resistant articles are described. The articles have coatings that provide specific reflectance, transmission, and/or color properties, as well as high hardness. Some embodiments have low reflectance, and high color. Some embodiments have high reflectance and neutral color. Some embodiments have high reflectance and high color. In some embodiments, the articles may be sunglasses with an optical coating, a scratch resistant mirror with an optical coating, or a consumer electronic product with an optical coating.

Abstract: According to one embodiment, there is an article including a glass-ceramic substrate having a major surface, an optical coating is disposed on the major surface and forms an appearance-enhancing surface, the optical coating including a appearance-enhancing coating, and a scratch-resistant layer. The article exhibits a hardness of 8 GPa or more, and a photopic average diffuse light reflectance measured at the appearance-enhancing surface of one of: (i) about 0.3% or less; (ii) about 0.2% or less; (iii) about 0.1% or less, over an optical wavelength regime in the range from about 400 nm to about 800 nm. Further, in the (L*, a*, b*) colorimetry system of the International Commission on Illumination, at near-normal incidence, the article comprises a diffuse reflectance dE* of one of: (i) about 3 or less; (ii) about 2 or less; or (iii) about 1 or less, where dE* is defined as dE*=sqrt(L*2+a*2+b*2).

Abstract: Strengthened glass articles having laser etched features, electronic devices, and methods of fabricating etched features in strengthened glass articles are disclosed. In one embodiment, a strengthened glass article includes a first strengthened surface layer and a second strengthened surface layer under a compressive stress and extending from a first surface and a second surface, respectively, of the strengthened glass article to a depth of layer, and a central region between the first strengthened surface layer and the second strengthened surface layer that is under tensile stress. The strengthened glass article further includes at least one etched feature formed by laser ablation within the first surface or the second surface having a depth that is less than the depth of layer and a surface roughness that is greater than a surface roughness of the first surface or second surface outside of the at least one etched feature.

Abstract: A flexible substrate are disclosed comprising an amorphous inorganic composition, wherein the substrate has a thickness of less than about 250 ?m and has at least one of: a) a brittleness ratio less than about 9.5 (?m)?1/2, or b) a fracture toughness of at least about 0.75 MPa.(m)1/2. Electronic devices comprising such flexible devices are also disclosed. Also disclosed is a method for making a flexible substrate comprising selecting an amorphous inorganic material capable of forming a substrate having a thickness of less than about 250 ?m and having at least one of: a) a brittleness ratio of less than about 9.5 (?m)?1/2, or b) a fracture toughness of at least about 0.75 MPa.(m)1/2; and then forming a substrate from the selected inorganic material.

Abstract: Strengthened glass articles having laser etched features, electronic devices, and methods of fabricating etched features in strengthened glass articles are disclosed. In one embodiment, a strengthened glass article includes a first strengthened surface layer and a second strengthened surface layer under a compressive stress and extending from a first surface and a second surface, respectively, of the strengthened glass article to a depth of layer, and a central region between the first strengthened surface layer and the second strengthened surface layer that is under tensile stress. The strengthened glass article further includes at least one etched feature formed by laser ablation within the first surface or the second surface having a depth that is less than the depth of layer and a surface roughness that is greater than a surface roughness of the first surface or second surface outside of the at least one etched feature.

Abstract: A coated article may comprise a substrate and an optical coating. The substrate may have a major surface comprising a first portion and a second portion. A first direction that is normal to the first portion of the major surface may not be equal to a second direction that is normal to the second portion of the major surface. The optical coating may be disposed on at least the first portion and the second portion of the major surface. The coated article may exhibit at the first portion of the substrate and at the second portion of the substrate hardness of about 8 GPa or greater at an indentation depth of about 50 nm or greater as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test.

Abstract: Embodiments of this disclosure pertain to a coating material comprising silicon and/or aluminum, hydrogen and any two or more of oxygen, nitrogen, carbon, and fluorine. The coating material exhibits a hardness of about 17 GPa or greater and an optical band gap of about 3.5 eV or greater. In some embodiments, the coating material includes, in atomic %, silicon and/or aluminum in an amount of about 40 or greater, hydrogen in an amount in the range from about 1 to about 25, nitrogen in an amount of about 30 or greater, oxygen in an amount in the range from about 0 to about 7.5, and carbon in an amount in the range from about 0 to about 10. The coating material may optionally include fluorine and/or boron. Articles including the coating material are also described and exhibit an average transmittance of about 85% or greater over an optical wavelength regime in the range from about 380 nm to about 720 nm and colorlessness.

Abstract: Embodiments of durable, anti-reflective articles are described. In one or more embodiments, the article includes a substrate and an optical coating disposed on the major surface. The optical coating includes an anti-reflective coating and a scratch-resistant coating forming an anti-reflective surface. The article exhibits a maximum hardness of 12 GPa or greater, as measured on the anti-reflective surface by a a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater. The articles of some embodiments exhibit a single side average light reflectance measured at the anti-reflective surface of about 8% or less over an optical wavelength regime in the range from about 400 nm to about 800 nm and a reference point color shift in transmittance or reflectance of less than about 2. In some embodiments, the article exhibits an angular color shift of about 5 or less at all angles from normal incidence to an incident illumination angle that is 20 degrees or greater.

Abstract: Embodiments of this disclosure pertain to a coating material comprising silicon and/or aluminum, hydrogen and any two or more of oxygen, nitrogen, carbon, and fluorine. The coating material exhibits a hardness of about 17 GPa or greater and an optical band gap of about 3.5 eV or greater. In some embodiments, the coating material includes, in atomic %, silicon and/or aluminum in an amount of about 40 or greater, hydrogen in an amount in the range from about 1 to about 25, nitrogen in an amount of about 30 or greater, oxygen in an amount in the range from about 0 to about 7.5, and carbon in an amount in the range from about 0 to about 10. The coating material may optionally include fluorine and/or boron. Articles including the coating material are also described and exhibit an average transmittance of about 85% or greater over an optical wavelength regime in the range from about 380 nm to about 720 nm and colorlessness.

Abstract: A scratch resistant alkali aluminoborosilicate glass. The glass is chemically strengthened and has a surface layer that is rich in silica with respect to the remainder of the glass article. The chemically strengthened glass is then treated with an aqueous solution of a mineral acid other than hydrofluoric acid, such as, for example, HCl, HNO3, H2SO4, or the like, to selective leach elements from the glass and leave behind a silica-rich surface layer. The silica-rich surface layer improves the Knoop scratch threshold of the ion exchanged glass compared to ion exchanged glass that are not treated with the acid solution as well as the post-scratch retained strength of the glass.

Abstract: Embodiments of this disclosure pertain to articles that exhibit scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle in the range from about 0 degrees to about 60 degrees from normal under an illuminant. In one or more embodiments, the articles include a substrate, and an optical film disposed on the substrate. The optical film includes a scratch-resistant layer and a refractive index gradient. In one or more embodiments, the refractive index includes a refractive index that increases from a first surface at the interface between the substrate and the optical film to a second surface. The refractive index gradient may be formed from a compositional gradient and/or a porosity gradient.

Abstract: Embodiments of durable, anti-reflective articles are described. In one or more embodiments, the article includes a substrate and an optical coating disposed on the major surface. The optical coating includes an anti-reflective coating and a scratch-resistant coating forming an anti-reflective surface. The article exhibits a maximum hardness of 12 GPa or greater, as measured on the anti-reflective surface by a a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater. The articles of some embodiments exhibit a single side average light reflectance measured at the anti-reflective surface of about 8% or less over an optical wavelength regime in the range from about 400 nm to about 800 nm and a reference point color shift in transmittance or reflectance of less than about 2. In some embodiments, the article exhibits an angular color shift of about 5 or less at all angles from normal incidence to an incident illumination angle that is 20 degrees or greater.

Abstract: Methods and articles are provide for: a substrate having first and second opposing surfaces; an intermediate layer substantially covering the first surface of the substrate, the intermediate layer being between about 1-5 microns in thickness and having a hardness of at least 15 GPa; a first outer layer substantially covering the intermediate layer; and a second outer layer substantially covering the first outer layer, and having a hardness of at least 15 GPa.

Abstract: Embodiments of this disclosure pertain to articles that exhibit scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle in the range from about 0 degrees to about 60 degrees from normal under an illuminant. In one or more embodiments, the articles include a substrate, and an optical film disposed on the substrate. The optical film includes a scratch-resistant layer and a refractive index gradient. In one or more embodiments, the refractive index includes a refractive index that increases from a first surface at the interface between the substrate and the optical film to a second surface. The refractive index gradient may be formed from a compositional gradient and/or a porosity gradient.