MATERIAL COATED WITH A FUNCTIONAL COATING COMPRISING A HIGH-INDEX LAYER

• Main Authors: BARRES Thomas, TOUMAR Alexandra, RONDEAU Véronique
• Format: Patent
• Language: English; Spanish
• Published: 30.05.2024
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; 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

The invention relates to a material comprising a transparent substrate coated with a functional coating comprising only two functional metal layers based on silver which are called, starting from the substrate, the first and second functional layers, and three dielectric coatings which are called, starting from the substrate, Di1, Di2 and Di3, each dielectric coating comprising at least one dielectric layer, such that each functional metal layer is arranged between two dielectric coatings, characterized in that: the first dielectric coating Di1 comprises a layer based on silicon zirconium nitride with a high refractive index, SixZryNz, and with an atomic ratio of Zr to the sum of Si + Zr, y/(x+y), higher than 0.20. La invención se refiere a un material que comprende un sustrato transparente revestido con un revestimiento funcional que comprende sólo dos capas metálicas funcionales a base de plata denominadas, a partir del sustrato, la primera y segunda capas funcionales, y tres revestimientos dieléctricos que se denominan, a partir del sustrato, Di1, Di2 y Di3, cada revestimiento dieléctrico comprende al menos una capa dieléctrica, de modo que cada capa metálica funcional se disponga entre dos revestimientos dieléctricos, caracterizado porque: el primer revestimiento dieléctrico Di1 comprende una capa a base de nitruro de silicio y circonio de alto índice de refracción, SixZryNz y con una relación atómica de Zr a la suma de Si + Zr, y/(x+y), mayor que 0.20.