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Intermediate cte glasses and glass articles comprising the same

A glass cladding and glass technology, applied in glass molding, glass molding, glass manufacturing equipment, etc., can solve the problems of increasing the risk of damage to glass products, reducing manufacturing yield, increasing the production cost and final cost of glass products, etc.

Active Publication Date: 2017-04-19
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These additional processing steps can add to the overall cost of the glass product
Additionally, the additional handling required to perform these processing steps increases the risk of damage to the glassware, which reduces manufacturing yields and increases the production and final cost of the glassware

Method used

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  • Intermediate cte glasses and glass articles comprising the same
  • Intermediate cte glasses and glass articles comprising the same
  • Intermediate cte glasses and glass articles comprising the same

Examples

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example

[0172] The glass composition embodiments described herein will be further illustrated by the following examples. The glass properties set forth in Table 2 were determined according to conventional techniques in the glass art. Therefore, T str (°C) is the strain point, which is the temperature at a viscosity equal to 10 as measured by beam bending or fiber elongation 14.7 The temperature at poise (P). The coefficient of linear thermal expansion (CTE) is achieved using ASTM E228-85 over the temperature range of 25°C - 300°C and is expressed in ×10 -7 / °C said. Annealing points are expressed in °C and determined by fiber elongation technique (ASTM C336). Density was measured using the Archimedes method (ASTM C693) (units are grams / cubic centimeter (g / cm3) 3 )). Melting temperature in °C (defined as the temperature at which glass melts to a viscosity of 400 poise) was calculated using the Fulcher equation to fit high temperature viscosity data measured via rotating cylinder ...

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PUM

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Abstract

Intermediate to high CTE glass compositions and laminates formed from the same are described. The glasses described herein have properties, such as liquidus viscosity or liquidus temperature, which make them particularly well suited for use in fusion forming processes, such as the fusion down draw process and / or the fusion lamination process. Further, the glass composition may be used in a laminated glass article, such as a laminated glass article formed by a fusion laminate process, to provide strengthened laminates via clad compression as a result of CTE mismatch between the core glass and clad glass.

Description

technical field [0001] This specification relates generally to glass compositions, and more particularly to intermediate to high CTE potassium-containing aluminosilicate and / or aluminoborosilicate compositions and glass articles comprising such compositions. Background technique [0002] Glass articles such as cover glass, glass backplanes, and the like can be used in consumer and commercial electronic devices such as LCD and LED displays, computer monitors, automated teller machines (ATMs), and the like. Some of these glass articles may include "touch" functionality, which necessitates that the glass article be contacted by various objects, including a user's finger and / or a stylus device, and thus the glass must be strong enough to withstand constant contact without damage. In addition, such glass articles may also be incorporated into portable electronic devices, such as mobile phones, personal media players, and tablet computers. Glass articles incorporated into these ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/00C03B17/06C03C3/093
CPCC03B17/064C03B17/02Y02P40/57B32B17/06C03C3/093
Inventor 蒂莫西·杰姆斯·基泽斯基米歇尔·黛安·皮尔森-斯塔尔
Owner CORNING INC