Ovonic Synthetic Materials Company Inc.

Energy Conversion Devices, Inc.

James D Flasck

Stanford R Ovshinsky

John E Keem

Erwin Eichen

David D Allred

Russell C Custer

Arnold Register

Richard C Bergeron

Kenneth Havener

Daniel P Durisin

Richard W Seguin

John E Tyler

Coated lenses are provided that are suitable for optical and ophthalmic applications that include a coating for providing wear resistance and filtering of electromagnetic radiation in the range of from ultraviolet to about 500 nanometers or higher. The coating comprises carbon and hydrogen and is preferably formed by a glow discharge deposition process.

Coated lenses

Disclosed is a coated article having a substrate with an adherent, abrasion resistant carbon coating. In a preferred examplification the coating is substantially transparent to visible light and partially absorbing to ultraviolet light. The coating has a relatively disordered portion at the substrate-coating interface and a relatively ordered portion remote from the substrate-coating interface. The coating is a microwave deposited coating with deposition initially at a low microwave energy, and thereafter at a high microwave energy.

Coated article and method of manufacturing the article

Disclosed is a method of forming a hard, carbonaceous film on a substrate and the hard carbonaceous film formed thereby. The hard carbonaceous film is formed by decomposing a gaseous hydrocarbon having carbon atoms tetrahedrally coordinated to its nearest neighbors through carbon-carbon single bonds. The gaseous hydrocarbon is decomposed in a radio frequency maintained plasma and the plasma decomposition products are deposited on a cathodic substrate. Optionally, fluorocarbons may be present in a decomposition gas.

Glow discharge method of applying a carbon coating onto a substrate and

Multilayer protective coatings that are applied over a substrate that comprise a plurality of superimposed multilayer units and methods of making the coatings are disclosed. Each multilayer unit contains two or more superimposed thin layers in which at least two layers are compositionally different. The properties of the resulting coating are a combination of the properties of the individual layers. One layer of a multilayer unit may provide hardness or wear resistance and another layer may provide lubricity, for example. The thickness of the individual layers can be related to the microscopic surface relief of the substrate to which the protective coating is applied. One disclosed multilayer unit comprises three layers: an oxidation resistant layer; a nitride layer; and a layer of disordered boron and carbon material. A method of making the multilayer coatings is provided that includes depositing over a substrate a plurality of superimposed multilayer units. The deposition may be accomplished by sputtering, for example.

Method of producing multilayer coatings on a substrate

Adherence coatings and methods for forming same are provided. Generally, the adherence coatings are utilized in combination with exterior wear-resistant coatings of, for example, at least one non-metallic element and a transition metal. The composition of the adherence coating is selected on the basis of the substrate and exterior coating compositions and generally contain one or more metallic elements. The adherence coating can be applied by sputtering, desirably in a manner to produce a columnar microstructure.

Adhesion and composite wear resistant coating and method

A coating and method of depositing it is provided. The wear resistant coating comprises a thin layer of disordered boron and carbon applied to a substrate. The coating has good adherence and provides good resistance to wear so that it is useful as a tool coating. In a more specific embodiment, the coating is disordered boron carbide. The coating can have a high gloss and can also be used as a decorative coating. The coating can be made by sputtering boron and carbon onto a substrate. A bias voltage may be applied to the substrate during sputtering. In accordance with one embodiment, the disordered boron and carbon coating is of a composition B.sub.x C.sub.1-x where x is from about 0.60 to about 0.90.

Disordered coating

A wear resistant dental burr coating is provided. The wear resistant coating comprises an external layer of disordered boron and carbon applied to the dental burr. In accordance with one embodiment, the disordered boron and carbon external coating is of a composition B.sub.x C.sub.1-x where x is from about 0.60 to about 0.90.

Dental drill bit having disordered, wear resistant boron carbon external

Disclosed is a method of forming a hard, carbonaceous film on a substrate and the hard carbonaceous film formed thereby. The hard carbonaceous film is formed by decomposing a gaseous hydrocarbon having carbon atoms tetrahedrally coordinated to carbon nearest neighbors through carbon-carbon single bonds. The gaseous hydrocarbon is decomposed in a radio frequency maintained plasma and the plasma decomposition products are deposited on a cathodic substrate. Optionally, fluorocarbons may be present in a decomposition gas.

Glow discharge method of applying a carbon coating onto a substrate

Coatings and methods for forming same are provided. Generally, the coatings are wear resistant disordered coatings of at least one nonmetallic element and a transition metal that are deposited on an article surface, such as a tool surface or other surface that is subjected to wear or friction. The resulting tools generally exhibit increased life with excellent lubricity thereby improving the surface finish of workpieces machined therewith. Adherence coatings are provided for achieving improved adherence of the wear resistant coating to the substrate.

Coating composition and method

Multilayer protective coatings that are applied over a substrate are disclosed that comprise a plurality of superimposed multilayer units. Each multilayer unit contains two or more superimposed thin layers in which at least two layers are compositionally different. The properties of the resulting coating are a combination of the properties of the individual layers. One layer of a multilayer unit may provide hardness or wear resistance and another layer may provide lubricity, for example. The thickness of the individual layers can be related to the microscopic surface relief of the substrate to which the protective coating is applied.

Multilayer protective coating and method

Multilayer protective coatings that are applied over a substrate are disclosed that comprise a plurality of superimposed multilayer units. Each multilayer unit contains two or more superimposed thin layers in which at least two layers are compositionally different. The properties of the resulting coating are a combination of the properties of the individual layers. One layer of a multilayer unit may provide hardness or wear resistance and another layer may provide lubricity, for example. The thickness of the individual layers can be related to the microscopic surface relief of the substrate to which the protective coating is applied. One disclosed multilayer unit comprises three layers: an oxidation resistant layer; a nitride layer; and a layer of disordered boron and carbon material.

Multilayer coating and method

Disclosed is a valve cross head adapted for mechanically translating valve opening impulses from the rocker arm of an internal combustion engine to the valve stem of the internal combustion engine. The cross head has a metal body portion and a ceramic wear pad. The ceramic wear pad includes a chemical vapor deposited transition metal film on the surface thereof whereby to permit adhesion thereof by brazing or soldering between the wear pad and the body portion.

Cross head for internal combustion engine

A wear resistant multilayer coating is provided. The wear resistant coating comprises at least one internal layer and a thin, external layer of disordered boron and carbon applied to a substrate. The synergistic interaction of a hard internal layer and a lubricious boron and carbon layer provides a long lived tool coating. In a more specific embodiment, the external layer of the coating is disordered boron carbide. In accordance with one embodiment, the disordered boron and carbon external coating is of a composition B.sub.x C.sub.1-x where x is from about 0.60 to about 0.90.

Multilayer coating including disordered, wear resistant boron carbon

A coating and method of depositing it is provided. The wear resistant coating comprises a thin layer of disordered boron and carbon applied to a substrate. The coating has good adherence and provides good resistance to wear so that it is useful as a tool coating. In a more specific embodiment, the coating is disordered boron carbide. The coating can have a high gloss and can also be used as a decorative coating. The coating can be made by sputtering boron and carbon onto a substrate. A bias voltage may be applied to the substrate during sputtering. In accordance with one embodiment, the disordered boron and carbon coating is of a composition B.sub.x C.sub.1-x where x is from about 0.60 to about 0.90. In accordance with another embodiment, an improved molding tool is provided that includes a disordered carbon coating on at least a portion of the working surface of the molding tool. The coating provides improved release characteristics, longer tool life and results in molded articles having smoother finishes and improved detail.

Molding tool and method

Coatings are provided that are especially useful for decorative purposes. The coatings are black, amorphous carbon and may be formed by dc magnetron sputtering on a substrate utilizing a target of high density graphite.

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Rochester, MI, United States of America

James D Flasck