Highly heat-resistant low-emissivity multilayer system for transparent substrates

• Main Authors: SCHMIDT UWE, SCHICHT HEINZ
• Format: Patent
• Language: Chinese; English
• Published: 22.04.2009
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

A highly heat-resistant low-emissivity multilayer system for transparent substrates, and in particular for glass panes, comprises, starting from the substrate, at least: a lower antireflection coating, consisting of several partial layers and including a layer essentially consisting of ZnO to which a silver-based functional layer is adjacent; an essentially metallic blocking layer located on top of the silver-based layer; an upper antireflection coating, consisting of several partial layers; and a top coating, possibly consisting of several partial layers. The upper antireflection coating comprises: a partial layer made of ZnO or a ZnMeOx mixed oxide that contains ZnO or a succession of layers of mixed oxides of the ZnO: Al/ZnMeOx type; a partial layer made of Si3N4 or SixOyNz; and, between these two partial layers, a separating layer with a thickness of 0.5 to 5 nm, consisting of a metal oxide or a mixed oxide with a cubic crystal lattice, which prevents direct contact between these two partial layers. The i