The present invention provides a microcrystalline glass and microcrystalline glass product with excellent mechanical properties, microcrystalline glass product, the components of which, expressed in weight percent, contain: SiO.sub.2: 65 ∼80%; AI.sub.2O.sub.3: below 5%; Li.sub.2O: 10 ∼25%; ZrO.sub.2: 5 ∼15%; P.sub.2O.sub.5: 1 ∼8%. Through the reasonable component design, the microcrystalline glass product obtained by the present invention have excellent mechanical properties.

A plate-like glass includes a chemically strengthened glass having a first surface, a second surface facing the first surface, and an end surface connecting the first surface and second surface. When a tangential direction from an arbitrary point on the first surface is assumed to be an X-axis, a direction orthogonal to the X-axis is assumed to be a Y-axis, and a direction orthogonal to the X-axis and the Y-axis is assumed to be a Z-axis, the X-axis is a direction in which a first curvature radius R.sub.1 in cross-section of the first surface in an XZ plane passing the X-axis and Z-axis is minimum. The first surface has a curvature part in which the surface is bent in the X-axis direction on the first surface and the first curvature radius R.sub.1 is within a specific range.

A plate-like glass includes a chemically strengthened glass having a first surface, a second surface facing the first surface, and an end surface connecting the first surface and second surface. When a tangential direction from an arbitrary point on the first surface is assumed to be an X-axis, a direction orthogonal to the X-axis is assumed to be a Y-axis, and a direction orthogonal to the X-axis and the Y-axis is assumed to be a Z-axis, the X-axis is a direction in which a first curvature radius R.sub.1 in cross-section of the first surface in an XZ plane passing the X-axis and Z-axis is minimum. The first surface has a curvature part in which the surface is bent in the X-axis direction on the first surface and the first curvature radius R.sub.1 is within a specific range.

Articles and methods related to the cold-forming of glass laminate articles utilizing stress prediction analysis are provided. A cold-forming estimator (CFE) value that is related to the stress experienced by a glass sheet of a glass laminate during cold-forming is calculated based on a plurality of geometric parameters of glass layer(s) of a glass laminate article. The calculated CFE value is compared to a cold-forming threshold related to the probability that defects are formed in the complexly curved glass laminate article during cold-forming. Cold-formed glass laminate articles are also provided having geometric parameters such that the CFE value is below the cold-forming threshold.

Articles and methods related to the cold-forming of glass laminate articles utilizing stress prediction analysis are provided. A cold-forming estimator (CFE) value that is related to the stress experienced by a glass sheet of a glass laminate during cold-forming is calculated based on a plurality of geometric parameters of glass layer(s) of a glass laminate article. The calculated CFE value is compared to a cold-forming threshold related to the probability that defects are formed in the complexly curved glass laminate article during cold-forming. Cold-formed glass laminate articles are also provided having geometric parameters such that the CFE value is below the cold-forming threshold.

A coated article is provided which may be heat treated (e.g., thermally tempered) and/or heat bent in certain example instances. In certain example embodiments, a zinc stannate based layer is provided between a tin oxide based layer and a silicon nitride based layer, and this has been found to significantly reduce undesirable mottling damage upon heat treatment/bending. This results in significantly improved bendability of the coated article in applications such as vehicle windshields and the like.

A coated article is provided which may be heat treated (e.g., thermally tempered) and/or heat bent in certain example instances. In certain example embodiments, a zinc stannate based layer is provided between a tin oxide based layer and a silicon nitride based layer, and this has been found to significantly reduce undesirable mottling damage upon heat treatment/bending. This results in significantly improved bendability of the coated article in applications such as vehicle windshields and the like.

Disclosed herein are systems for shaping glass structures, comprising a shaping mold; a magnetic field generator; and a susceptor plate positioned substantially between the shaping mold and the magnetic field generator. Also disclosed herein are systems for shaping a glass structures, comprising a magnetic field generator comprising at least one induction coil and a one power supply connected to the at least one induction coil; and a susceptor plate having a first surface proximate the at least one induction coil and an opposing second surface proximate the glass structure. Further disclosed herein are methods for heating glass structures, comprising positioning the glass structure on a shaping mold; introducing the shaping mold and glass structure into a furnace; and indirectly heating at least a portion of the glass structure using at least one induction heating source.

Disclosed herein are glass articles and methods of manufacturing the same. The glass articles may include a glass layer comprising a first portion having a first thickness, a second portion having a second thickness, and a third portion disposed in between the first portion and the second portion. The third portion may form a living hinge. The living hinge may comprise a plurality of indentations such that a majority of the third portion has a third thickness that is less than the first thickness and the second thickness. In addition, the living hinge may comprise a plurality of protrusions such that a majority of the third portion has a third thickness that is greater than the first thickness and the second thickness.

Disclosed herein are glass articles and methods of manufacturing the same. The glass articles may include a glass layer comprising a first portion having a first thickness, a second portion having a second thickness, and a third portion disposed in between the first portion and the second portion. The third portion may form a living hinge. The living hinge may comprise a plurality of indentations such that a majority of the third portion has a third thickness that is less than the first thickness and the second thickness. In addition, the living hinge may comprise a plurality of protrusions such that a majority of the third portion has a third thickness that is greater than the first thickness and the second thickness.