Heat treatable coated article and method of making same
AssigneeGuardian Industries Corp.
InventorGrzegorz Stachowiak
Life of this patent
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Abstract
A coated article or layer system is provided which includes at least one infrared (IR) reflecting layer including niobium (Nb) sandwiched between at least a pair of dielectric layers. In certain embodiments, a Cr inclusive barrier layer is provided to protect the Nb inclusive IR reflecting layer, for chemical durability purposes. In other example embodiments, a protective overcoat including a zirconium oxide inclusive layer may be provided to protect the Nb inclusive IR reflecting layer for durability purposes.
Claims11
A coated article including a layer system supported by a glass substrate, the layer system comprising at least the following layers from the glass substrate outwardly:
- a dielectric layer;
- a first Cr inclusive barrier layer;
- a first Nb inclusive IR reflecting layer located over and contacting the first Cr inclusive barrier layer;
- a second Cr inclusive barrier layer located over and contacting the first Nb inclusive IR reflecting layer;
- a second Nb inclusive IR reflecting layer located over and contacting the second Cr inclusive barrier layer;
- a third Cr inclusive barrier layer located over and directly contacting the second Nb inclusive IR reflecting layer;
- and
- another dielectric layer located over the third Cr inclusive barrier layer.
Dependencies are inferred from the claim text.