SCRATCH RESISTANT GLASS AND METHOD OF MAKING

Methods of manufacturing a glass-based article includes exposing a glass-based substrate having a lithium aluminosilicate composition to an ion exchange treatment to form the glass-based article. The ion exchange treatment including a molten salt bath having a concentration of a sodium salt in a ran...

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Bibliographic Details
Main Authors Oram, Pascale, Roussev, Rostislav Vatchev, Guo, Xiaoju, Wilkinson, Taylor Marie, Amin, Jaymin, Ukrainczyk, Ljerka
Format Patent
LanguageEnglish
Published 04.04.2024
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
METALLURGY
MINERAL OR SLAG WOOL
PRINTED CIRCUITS
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:Methods of manufacturing a glass-based article includes exposing a glass-based substrate having a lithium aluminosilicate composition to an ion exchange treatment to form the glass-based article. The ion exchange treatment including a molten salt bath having a concentration of a sodium salt in a range from 8 mol % to 100 mol %. The glass-based article includes sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article The glass-based article has compressive stress layer extending from the surface to a spike depth of layer from 4 micrometers to 8 micrometers. The glass-based article includes a molar ratio of potassium oxide (K2O) to sodium oxide (Na2O) averaged over a distance from the surface to a depth of 0.4 micrometers that is greater than or equal to 0 and less than or equal to 1.8.
Bibliography:Application Number: US202318537240