METHOD OF MAKING A GLASS LAMINATE HAVING CONTROLLED STRENGTH

A method for making a glass laminate sheet including: selecting a core glass composition and a clad glass composition combination for a glass laminate structure; determining and comparing the viscosity and coefficient of thermal expansion (CTE) profiles for each of the selected core and the clad gla...

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Hauptverfasser: MADAPUSI SHRIRAM PALANTHANDALAM, NIKULIN ILIA ANDREYEVICH, AMOSOV ALEXEY SERGEYEVICH, BURDETTE STEVEN ROY
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for making a glass laminate sheet including: selecting a core glass composition and a clad glass composition combination for a glass laminate structure; determining and comparing the viscosity and coefficient of thermal expansion (CTE) profiles for each of the selected core and the clad glass compositions with each other over a temperature range of interest including the onset of viscoelasticity to ambient temperature; and processing the selected core and clad glass composition in a laminate fusion draw apparatus to form a laminate glass sheet in accordance with at least one difference condition for the clad effective coefficient thermal expansion (CTEeff core) and the core effective coefficient thermal expansion (CTEeff core). Another method for making a glass laminate sheet includes controlling the cooling rate to control the resulting strength of the laminate.