Glass-ceramic of lithium aluminosilicate type containing a solid solution of [beta]-spodumene

The subject of the invention is a glass-ceramic of lithium aluminosilicate type containing a solid solution of [beta]-spodumene and having, for a thickness of 4 mm: - a light transmittance factor within a range extending from 0.3% to 2%, in particular from 0.6% to 1.7%, - an optical transmittance fo...

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Bibliographische Detailangaben
Hauptverfasser:	PLEVACOVA KAMILA, VILATO PABLO, LECOMTE EMMANUEL, JOUSSEAUME CECILE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION GLASS HEATING JOINING GLASS TO GLASS OR OTHER MATERIALS LIGHTING MECHANICAL ENGINEERING METALLURGY MINERAL OR SLAG WOOL OTHER DOMESTIC STOVES OR RANGES RANGES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The subject of the invention is a glass-ceramic of lithium aluminosilicate type containing a solid solution of [beta]-spodumene and having, for a thickness of 4 mm: - a light transmittance factor within a range extending from 0.3% to 2%, in particular from 0.6% to 1.7%, - an optical transmittance for a wavelength of 625 nm of greater than 3.0%, in particular of greater than 3.5%, - 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 degrees such that 15.0