FIELD: technological processes.
SUBSTANCE: invention relates to energy-saving coatings, in particular to energy-saving coatings on glass, having properties of thermal stability and high selectivity, and a method for production thereof. Heat-resistant highly selective energy-saving green coating on glass consists of separate directly contacting layers. Coating includes the following adhering layers in the order from the glass substrate to the outside: the first layer adjacent to the surface of the glass substrate contains sub-stoichiometric nitride of aluminium-doped Si-Al-N silicon, the next layer being the first contact layer, which contains tin-doped zinc oxide Zn-Sn-O, followed by a layer containing zinc alloyed zinc oxide Zn-Al-O, which is the first catalytic layer, subsequent layer, which contains silver Ag, is the first layer reflecting infrared radiation, followed by a layer containing sub-stoichiometric nichromic oxide Ni-Cr-O, which is the first barrier layer, the next layer containing zinc alloyed zinc oxide Zn-Al-O is the first covering layer, followed by an intermediate layer containing sub-stoichiometric aluminium nitride Al-N, the next layer is the second contact layer and contains zinc alloyed zinc oxide Zn-Sn-O, followed by a layer containing zinc alloyed zinc oxide Zn-Al-O, which is the second catalytic layer, subsequent layer, which contains silver Ag, is the second layer reflecting infrared radiation, followed by a layer containing sub-stoichiometric nichrome Ni-Cr-O oxide, which is the second barrier layer, the next layer, which contains sub-stoichiometric tungsten nitride WN, is an absorbent layer, followed by a layer containing sub-stoichiometric aluminium nitride Al-N, which is the second covering layer, as well as a protective layer for providing chemomechanical protection of all of the previously listed layers structure, next layer, which is an external layer of all listed structure of layers of coating and serves as anti-cracking (AC) layer, contains zinc alloyed zinc Zn-Sn-O.
EFFECT: technical result is providing combination of qualities of thermal stability, high selectivity and expressed green colour of energy-saving coating on glass substrates, expressed in combination of set of properties: stability with respect to prolonged effects of high temperatures, which is expressed in maintaining the minimum value of glass substrate turbidity level based on the effect, sun-protective properties with respect to excess thermal solar action with simultaneous maintenance of satisfactory level of visible light transmission, energy efficiency properties in terms of reducing radiative heat losses during cold weather, and green reflection of the surface of the glass substrate on the side opposite to the side on which the thin-film energy-efficient optical coating is applied, achieved in a wide range of viewing angles.
4 cl, 6 dwg, 4 tbl
