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1. WO2020092142 - TOUGH GLASS COMPOSITE AND METHOD

Publication Number WO/2020/092142
Publication Date 07.05.2020
International Application No. PCT/US2019/058011
International Filing Date 25.10.2019
IPC
C03C 3/062 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
062with less than 40% silica by weight
C03C 3/085 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
076with 40% to 90% silica by weight
083containing aluminium oxide or an iron compound
085containing an oxide of a divalent metal
C03C 23/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
23Other surface treatment of glass not in the form of fibres or filaments
CPC
C03C 23/008
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
23Other surface treatment of glass not in the form of fibres or filaments
008comprising a lixiviation step
C03C 23/009
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
23Other surface treatment of glass not in the form of fibres or filaments
009Poling glass
C03C 3/062
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
062with less than 40% silica by weight
C03C 3/085
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
076with 40% to 90% silica, by weight
083containing aluminium oxide or an iron compound
085containing an oxide of a divalent metal
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • DUTTA, Indrajit
  • SMITH, Nicholas James
Agents
  • BEAN, Gregory V.
Priority Data
62/753,41331.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TOUGH GLASS COMPOSITE AND METHOD
(FR) COMPOSITE DE VERRE RÉSISTANT ET PROCÉDÉ
Abstract
(EN)
Embodiments of a glass substrate including an alkali-containing bulk and an alkali-depleted surface layer, including a substantially homogenous composition with at least 51 mol% Al2O3 are disclosed. In some embodiments, the alkali-depleted surface layer includes about 0.5 atomic% alkali or less. The alkali-depleted surface layer can be substantially free of hydrogen and/or crystallites. Methods for forming a glass substrate with a modified surface layer are also provided.
(FR)
Des modes de réalisation de la présente invention concernent un substrat de verre comprenant une masse contenant un métal alcalin et une couche de surface appauvrie en métal alcalin, comprenant une composition sensiblement homogène comportant au moins 51 % en moles d'Al2O3. Dans certains modes de réalisation, la couche de surface appauvrie en métal alcalin comprend une proportion de métal alcalin inférieure ou égale à environ 0,5 % atomique. La couche de surface appauvrie en métal alcalin peut être sensiblement exempte d'hydrogène et/ou de cristallites. L'invention concerne également des procédés pour former un substrat de verre comportant une couche de surface modifiée.
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