Glass-ceramic plates and methods of fabricating them

The invention relates to glass-ceramic plates, hotplates incorporating them and their fabrication process. The glass-ceramic plate of the invention is of the type having a bottom substrate layer and a top coating layer and is characterized in that the top coating layer covers at least the external t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SEMJEN MARIANNE, CARRE ALAIN R. E, GUERMEUR CELINE C
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 invention relates to glass-ceramic plates, hotplates incorporating them and their fabrication process. The glass-ceramic plate of the invention is of the type having a bottom substrate layer and a top coating layer and is characterized in that the top coating layer covers at least the external top surface of the bottom glass-ceramic layer and is a layer of a hard substrate material chosen from the group constituted by silicon carbide, silicon oxycarbide, silicon nitride, silicon oxynitride and hydrogenated amorphous carbons. The invention finds an application in the fabrication of coated glass-ceramic plates and in particular in the fabrication of glass-ceramic hotplates.