TRANSPARENT GLASS CERAMIC CAPABLE OF BEING DARKENED BY USING VANADIUM OXIDE

PROBLEM TO BE SOLVED: To provide transparent glass ceramic that can be darkened by addition of vanadium oxide and contains high-temperature quartz mixed crystal as a main crystal phase, and to provide its manufacturing method and its using method.SOLUTION: This transparent glass ceramic can be darke...

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Hauptverfasser:	FRIEDRICH SIEBERS, NASS PETER, RODEK ERICH
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide transparent glass ceramic that can be darkened by addition of vanadium oxide and contains high-temperature quartz mixed crystal as a main crystal phase, and to provide its manufacturing method and its using method.SOLUTION: This transparent glass ceramic can be darkened by addition of vanadium oxide and contains high-temperature quartz mixed crystal as a main crystal phase. Glass ceramic that is darkened and does not contain arsenic oxide and/or antimony oxide as a chemically tempering agent except for an unavoidable trace amount has light transmittance of τ