Abstract: Methods, compositions, and articles provide for LAS-type glass-ceramics having specific thermo-mechanical, optical and coloration characteristics to yield generally brown-grey products. The glass-ceramic materials may include as colorants iron oxide, vanadium oxide, chromium oxide, cobalt oxide, nickel oxide and/or cerium oxide.

Abstract: Methods, compositions, and articles provide for LAS-type glass-ceramics having specific thermo-mechanical, optical and coloration characteristics to yield generally brown-grey products. The glass-ceramic materials may include as colorants iron oxide, vanadium oxide, chromium oxide, cobalt oxide, nickel oxide and/or cerium oxide.

Abstract: The subject matter of the invention is a reinforced glass plate for an induction cooking device, the chemical composition of which comprises the following colorants, in a content which varies within the weight limits defined hereinafter: Fe2O3 (total iron): 0.8% to 1.8%, CoO: 0.02% to 0.06%, Se: 0 to 0.005%, Cr2O3: 0 to 0.1%. The invention is also directed towards an induction cooking device comprising at least one inductor placed under such a glass plate.

Abstract: A transparent, colorless and non-scattering glass-ceramic plate of lithium aluminosilicate type and containing crystals of ?-quartz structure, the chemical composition of which does not contain oxides of arsenic, of antimony and of neodymium, and includes the following constituents within the limits defined below, expressed as weight percentages: SiO2 55-75%; Al2O3 12-25%; Li2O 2-5%; Na2O+K2O 0-<2%; Li2O+Na2O+K2O 0-<7%; CaO 0.3-5%; MgO 0-5%; SrO 0-5%; BaO 0.5-10%; CaO+BaO >1%; ZnO 0-5%; TiO2 ?1.9%; ZrO2 ?3%; TiO2+ZrO2 >3.80%; SnO2 ?0.1%; SnO2/(SnO2+ZrO2+TiO2)<0.1.

Abstract: A transparent, colorless and non-scattering glass-ceramic plate of lithium aluminosilicate type and containing crystals of ?-quartz structure, the chemical composition of which does not contain oxides of arsenic, of antimony and of neodymium, and includes the following constituents within the limits defined below, expressed as weight percentages: SiO2 55-75%; Al2O3 12-25%; Li2O 2-5%; Na2O+K2O 0-<2%; Li2O+Na2O+K2O 0-<7%; CaO 0.3-5%; MgO 0-5%; SrO 0-5%; BaO 0.5-10%; CaO+BaO >1%; ZnO 0-5%; TiO2 ?1.9%; ZrO2 ?3%;TiO2+ZrO2 >3.80%; SnO2 ?0.1%; SnO2/(SnO2+ZrO2+TiO2)<0.1.

Abstract: Methods, compositions, and articles provide for LAS-type glass-ceramics having specific thermo-mechanical, optical and coloration characteristics to yield generally brown-grey products. The glass-ceramic materials may include as colorants iron oxide, vanadium oxide, chromium oxide, cobalt oxide, nickel oxide and/or cerium oxide.

Abstract: Methods, compositions, and articles provide for LAS-type glass-ceramics having specific thermo-mechanical, optical and coloration characteristics to yield generally brown-grey products. The glass-ceramic materials may include as colorants iron oxide, vanadium oxide, chromium oxide, cobalt oxide, nickel oxide and/or cerium oxide.

Abstract: A subject matter of the invention is a partially crystalline glass plate, the linear thermal expansion coefficient of which is within a range extending from 20 to 40×10?7/K and the chemical composition of which comprises the following constituents, varying within the limits by weight defined below: SiO2 ?55-70% Al2O3 ?12-25% Li2O ??1-2% K2O ??0-<3% Na2O ??0-<3% Li2O + Na2O + K2O ??1-<7% RO ??2-10% (WHERE RO = MgO + CaO + SrO + BaO + ZnO) TiO2 ??0-5% ZrO2 0.1-3%.

Abstract: A biocidal glass composition for use in roofing applications can include glass doped with at least one biocidal agent that includes about 0.01 wt. % to about 50 wt. % of a total weight % of the biocidal glass composition. The biocidal glass composition can be included in a coating on a base particle of a roofing granule. Further included is a process of forming the roofing granule.

Abstract: A domestic oven door includes an inner glass sheet intended to be the glass sheet closest to the compartment of the oven, and an outer glass sheet, the glass sheets being held rigidly connected and being separated by an air gap, the inner glass sheet possessing a chemical composition which includes the following constituents, in an amount by weight within the limits defined hereinafter: SiO2 55-70% Al2O3 12-25% B2O3 ?0-0.5% Li2O ?0-2% Na2O + K2O ?0-5% MgO ?0-10% CaO ?0-15% SrO ?0-15% BaO ?0-15% ZnO ?0-5% RO ?5-25% where RO = MgO + CaO + SrO + BaO + ZnO TiO2 ?0-3% ZrO2 ?0-4%.

Abstract: A glass-ceramic of the lithium aluminosilicate type includes a solid solution of ?-spodumene and exhibits, for a thickness of 4 mm; a light transmittance within a range extending from 0.3 to 2%, an optical transmittance for a wavelength of 625 nm of greater than 3.0%, an optical transmittance for a wavelength of 950 nm within a range extending from 50 to 75%, an optical transmittance for a wavelength of 1600 nm of at least 50%, and L*, a*, b* colorimetric coordinates in diffuse reflection for an illuminant D65 and a reference observer at 2° such that 15.0?L*?40.0, ?3.0?a*?3.0 and ?10.0?b*?3.0. The chemical composition of the glass-ceramic includes the following constituents, varying within the limits by weight defined: SnO2 0.2-0.6%, V2O5 0.015-0.070%, Cr2O30.01-0.04% or Bi2O3 0.05-3.0%, Fe2O3 0.05-<0.15%, AS2O3+Sb2O3<0.1%.

Abstract: The subject matter of the invention is a reinforced glass plate for an induction cooking device, the chemical composition of which comprises the following colorants, in a content which varies within the weight limits defined hereinafter: Fe2O3 (total iron): 0.8% to 1.8%, CoO: 0.02% to 0.06%, Se: 0 to 0.005%, Cr2O3: 0 to 0.1%. The invention is also directed towards an induction cooking device comprising at least one inductor placed under such a glass plate.

Abstract: A domestic oven door includes an inner glass sheet intended to be the glass sheet closest to the compartment of the oven, and an outer glass sheet, the glass sheets being held rigidly connected and being separated by an air gap, the inner glass sheet possessing a chemical composition which includes the following constituents, in an amount by weight within the limits defined hereinafter: SiO2 55-70% Al2O3 12-25% B2O3 ?0-0.5% Li2O ?0-2% Na2O + K2O ?0-5% MgO ?0-10% CaO ?0-15% SrO ?0-15% BaO ?0-15% ZnO ?0-5% RO ?5-25% where RO = MgO + CaO + SrO + BaO + ZnO TiO2 ?0-3% ZrO2 ?0-4%.

Abstract: Methods, compositions, and articles provide for LAS-type glass-ceramics having specific thermo-mechanical, optical and coloration characteristics to yield generally brown-grey products. The glass-ceramic materials may include as colorants iron oxide, vanadium oxide, chromium oxide, cobalt oxide, nickel oxide and/or cerium oxide.

Abstract: A biocidal glass composition for use in roofing applications can include glass doped with at least one biocidal agent that includes about 0.01 wt. % to about 50 wt. % of a total weight % of the biocidal glass composition. The biocidal glass composition can be included in a coating on a base particle of a roofing granule. Further included is a process of forming the roofing granule.