Abstract: A heat treatable, durable and chemically resistant layer system for glasses used for automotive and architectural purposes includes a metallic layer of nickel or alloy thereof overcoated with silicon nitride (Si.sub.3 N.sub.4). The layer system may include an undercoat of silicon nitride (Si.sub.3 N.sub.4) and the metallic layer may also include silicon nitride. The metallic layer may be partially oxidized or surrounded by layers of stoichiometric oxides of the metal. The metallic layer, however, should not contain a nitride.

Abstract: A high visible light transmitting, low-E sputter coating system, achieving neutral color and non-mirror-like appearance, useful in 2-pane and 3-pane IG units is achieved by an intermediate layer of silver, an undercoat of a metal oxide or nitride having an index of refraction of 2.35-2.75 and an overcoat of a metal oxide or nitride having an index of refraction of 1.85-2.25.

Abstract: A sputter-coated layer system on a glass substrate particularly useful in insulating glass (IG) units, enables normal emissivity values (E.sub.n) of 0.06 or less, good durability and neutral color. The layer system includes an undercoat of a transparent dielectric having an index of refraction between 2.5-2.6 at a wavelength of 550 nanometers, two layers of Si.sub.3 N.sub.4, and two layers of nichrome sandwiching a layer of silver to achieve its unique low-E, neutral color, non-mirrorlike solar management properties. An optional overcoat of a transparent dielectric material having an index of refraction of 2 at a wavelength of 550 nanometers may be provided.

Abstract: A low-E sputter-coated layer system for automotive and architectural purposes of the basic Si.sub.3 N.sub.4 /NiCr/Ag/NiCr/Si.sub.3 N.sub.4 type improved by either an undercoat of TiO.sub.2 or the use of stainless steel in the Si.sub.3 N.sub.4 layers, or both. By selection of appropriate thicknesses the layer coatings may be rendered heat treatable. I.G. units are an advantage product in which the coatings may be employed.

Abstract: A sputter-coated layer system including a non-nitrided and non-oxidized nickel or nickel alloy layer located between two layers of Si.sub.3 N.sub.4 of the requisite thicknesses and used for architectural and automotive glass substrates so as to be heat treatable and have .DELTA.E characteristics sufficiently low to render the products matchable as between heat treated and non-heat treated products having the same coating thereon.

Abstract: A low-E sputter-coated layer system for automotive and architectural purposes of the basic Si.sub.3 N.sub.4 /NiCr/Ag/NiCr/Si.sub.3 N.sub.4 type improved by either an undercoat of TiO.sub.2 or the use of stainless steel in the Si.sub.3 N.sub.4 layers, or both. By selection of appropriate thicknesses the layer coatings may be rendered heat treatable. I.G. units are an advantage product in which the coatings may be employed.

Abstract: A sputter-coated layer system on a glass substrate particularly useful in insulating glass (IG) units, enables normal emissivity values (E.sub.n) of 0.06 or less, good durability and neutral color. The layer system includes an undercoat of a transparent dielectric having an index of refraction between 2.5-2.6 at a wavelength of 550 nanometers, two layers of Si.sub.3 N.sub.4, and two layers of nichrome sandwiching a layer of silver to achieve its unique low-E, neutral color, non-mirrorlike solar management properties. An optional overcoat of a transparent dielectric material having an index of refraction of 2 at a wavelength of 550 nanometers may be provided.

Abstract: A sputter-coated layer system including a non-nitrided and non-oxidized nickel or nickel alloy layer located between two layers of Si.sub.3 N.sub.4 of the requisite thicknesses and used for architectural and automotive glass substrates so as to be heat treatable and have .DELTA.E characteristics sufficiently low to render the products matchable as between heat treated and non-heat treated products having the same coating thereon.

Abstract: A high performance, durable sputter coated, heat-treatable glass which after heat-treatment exhibits about 76% or more visible transmittance, a hemispherical emissivity (E.sub.h) of about 0.16 or less, and a normal emissivity (E.sub.n) of about 0.12 or less is formed by sputter coating a layer system on a glass substrate which includes an undercoat and overcoat of Si.sub.3 N.sub.4, a silver layer, and two nickel or nichrome layers on opposite sides of the silver layer, and wherein the lower nickel-based layer is about three times as thick as the other nickel based layer. The increased thickness of the lower nickel-based layer allows the coated glass article to be both heat-treatable, and "low-E" after the heat-treatment. This allows matching with other known glasses in the family of layer components by way of the heat-treatment process.

Abstract: A sputter-coated glass layer system particularly useful in insulating glass units ("IGs"), which includes dual layers of silver separated by a layer of Si.sub.3 N.sub.4 having a thickness of about 700 .ANG.-1,100 .ANG. and further including an undercoat and an overcoat of Si.sub.3 N.sub.4 having thicknesses of about 300 .ANG.-550 .ANG. and about 350 .ANG.-700 .ANG. respectively, such that a glass so coated achieves normal emissivity values (E.sub.n 's) of less than about 0.02-0.09 with good durability and very low reflectance.

Abstract: A sputter-coated glass layer system particularly useful in insulating glass units ("IGs"), which includes a single layer of silver having a thickness of about 115 .ANG. -190 .ANG. located between two layers of nickel or nichrome having a thickness of 7 .ANG. or less, and provided with an undercoat and an overcoat of Si.sub.3 N.sub.4 having thicknesses of about 450 .ANG.-600 .ANG. and about 580 .ANG.-800 .ANG. respectively, such that a glass so coated achieves normal emissivity values (E.sub.n 's) of less than about 0.07 and good durability without acquiring a mirror-like and highly purple appearance.

Abstract: A high performance, durable, low-E glass exhibiting about 80% or more visible transmittance, a hemispherical emissivity (E.sub.h) of about 0.13 or less, and a normal emissivity (E.sub.n) of about 0.10 or less is formed by sputter-coating a layer system on the glass substrate which comprises an undercoat and overcoat of Si.sub.3 N.sub.4, at least one silver layer, and at least two sandwiching layers of a nickel or nickel alloy, preferably with the nickel alloy being nichrome, and the chromium being in the form of a nitride thereof.

Abstract: A sputter coating target which alleviates the need for anode reconditioning due to a buildup of a nonconductive coating comprises a coating component which itself or its reactive product is substantially electrically nonconductive and a dopant component which itself or its reactive product is substantially electrically conductive.

Abstract: A high performance, durable sputter coated, heat-treatable glass which after heat-treatment exhibits about 76% or more visible transmittance, a hemispherical emissivity (E.sub.h) of about 0.16 or less, and a normal emissivity (E.sub.n) of about 0.12 or less is formed by sputter coating a layer system on a glass substrate which includes an undercoat and overcoat of Si.sub.3 N.sub.4, a silver layer, and two nickel or nichrome layers on opposite sides of the silver layer, and wherein the lower nickel-based layer is about three times as thick as the other nickel based layer. The increased thickness of the lower nickel-based layer allows the coated glass article to be both heat-treatable, and "low-E" after the heat-treatment. This allows matching with other known glasses in the family of layer components by way of the heat-treatment process.

Abstract: A high performance, durable, low-E glass exhibiting about 80% or more visible transmittance, a hemispherical emissivity (E.sub.h) of about 0.13 or less, and a normal emissivity (E.sub.n) of about 0.10 or less is formed by sputter-coating a layer system on the glass substrate which comprises an undercoat and overcoat of Si.sub.3 N.sub.4, at least one silver layer, and at least two sandwiching layers of a nickel or nickel alloy, preferably with the nickel alloy being nichrome, and the chromium being in the form of a nitride thereof.

Abstract: A heat treatable sputter-coated layer system for glass substrates may be applied before heat treatment if the layer system includes a metallic layer of nickel or a high nickel content alloy covered by a separate layer of metallic silicon or an oxide of nickel or the high nickel content alloy, which in turn is covered by a protective metal oxide such as stoichiometric Sn O.sub.2.

Abstract: A heat treatable sputter-coated layer system for glass substrates may be applied before heat treatment if the layer system includes a metallic layer of nickel or a high nickel content alloy covered by a separate layer of metallic silicon or an oxide of nickel or the high nickel content alloy, which in turn is covered by a protective metal oxide such as stoichiometric Sn O.sub.2.