Heat treatable sputter-coated glass systems
AssigneeGuardian Industries Corp.
InventorsPhilip J. Lingle, Raymond Nalepka, Klaus W. Hartig
Life of this patent
Estimating the term…
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.
Claims16
A method of forming a heat treatable coated glass article comprising sputter-coating onto said glass in the sequence given from glass outwardly the following layers:
- a) a first layer having a thickness of about 5-100.ANG. and comprised of an oxide or nitride of a metal selected from the group consisting of nickel and a nickel alloy having at least about 50% by weight nickel;
- b) a second layer having a thickness of about 20-250.ANG. and comprised of a metal selected from the group consisting of nickel and a nickel alloy having at least about 50% by weight nickel;
- c) a third layer having a thickness of about 5-100.ANG. and comprised of an oxide or nitride of a metal selected from the group consisting of nickel and a nickel alloy having at least about 50% by weight nickel;
- and
- d) a fourth layer having a thickness of about 20-1000.ANG. and comprised of an oxide of a metal selected from the group consisting of tin, zinc, titanium and alloys thereof.
A method of forming a coated, heat treated glass article comprising:
- a) forming a substantially non-oxidized metallic layer (a) consisting essentially of nickel or an alloy having greater than about 50% by weight nickel and having a thickness of about 20-250.ANG.;
- separately forming on layer (a) a layer (b) selected from metallic silicon or a metallic oxide or nitride wherein the metal in said oxide is nickel or an alloy having greater than about 50% by weight nickel and having a thickness of about 5-100.ANG. wherein said layer (b) tightly bonds layers (a) to layer (c);
- c) separately forming on layer (b) said protective layer consisting of a substantially stoichiometric metallic oxide and having a thickness of about 20-1000.ANG.;
- and thereafter heat treating said article.
Dependencies are inferred from the claim text.