Cleveland State University

Other

Edgar E Graham

Nelson H Forster

James F Makki

Wilfredo Morales

Thomas C Coneglio

Roger M Koeberle

Raj D Bedi

Nirav Patel

An improved method is disclosed to provide a ceramic article with a protective coating which resists mechanical wear at elevated temperatures up to 500.degree. C. and higher. The coating is formed by first treating the ceramic article's surface with transition metal ions deposited at ambient temperatures, thereafter depositing a mixture containing said transition metal ions and a polymer-forming organic reactant on the treated ceramic article surface at ambient temperatures, and heating the ceramic article to at least 300.degree. C. for polymerization of the organic reactant. Ceramic articles provided with such protective coating include silicon carbide, silicon nitride and vitreous silica.

Method of providing ceramic article with wear resistant coating

An improved method to lubricate a metal workpiece at elevated working temperatures is described employing a novel liquid lubricant preparation which includes a vaporizable and polymerizable alkyl aromatic phosphate ester in combination with a die release agent selected from the group consisting of an organic binder and a fatty acid soap, to include mixtures thereof. The applied preparation forms a solid polymer lubricant in the forming die at the elevated working temperatures enabling lower applied pressures to be employed while producing superior workpieces.

Elevated temperature metal forming lubrication method

Metal and/or ceramic bearing lubrication is provided over a utilization temperature range extending from about -50.degree. C. up to at least 500.degree. C. and higher with a blended mixture of a vaporizable and polymerizable aryl ester contained in a liquid alpha olefin oligomer. Vapor-phase polymerization of the aryl phosphate ester occurs during bearing operation to produce a polymer lubricating coating on at least one of the treated bearing surfaces.

Bearing lubrication means having wide temperature utilization

Metal and ceramic bearing means being operated at elevated temperatures of at least 300.degree. C. and higher under various atmospheric conditions are effectively lubricated with a novel class of vapor-phase deposited polymer lubricants. The lubricants are formed in-situ during bearing operation and are formed starting with various polyphenyl thioether compounds.

High temperature lubrication method for metal and ceramic bearings

An improved method to lubricate a metal workpiece at elevated temperatures is described employing a novel polymer lubricant formed in situ. The novel lubricant is provided with a liquid mist of a lubricant preparation containing a vaporizable and polymerizable organic reactant in combination with graphite particulates being supplied to both workpiece and forming die at the elevated working temperatures.

Elevated temperature metal forming lubrication

An improved method to lubricate a metal workpiece at elevated temperatures is described employing a novel polymer lubricant formed in situ. The novel lubricant is provided with a liquid mist of a vaporizable and polymerizable organic reactant being supplied to both workpiece and forming die at the elevated working temperatures.

A magnetic prism pod device for electronic distance measurement on pipe and flat surfaces is disclosed that has the capability of self-attaching to pipe and steel surfaces. The prism pod device has leveling capabilities for taking measurements to the center line of a pipe from all directions. The device also has the ability to be replaced exactly over a previously used spot once removed from that spot.

Prism pod

Metal and ceramic bearing means being operated at elevated temperatures of at least 300.degree. C. and higher under atmospheric conditions are effectively lubricated with a novel class of vapor-phase deposited polymer lubricants. The lubricants are formed in situ during bearing operation and can further be applied as a precoat upon at least one of the untreated bearing surfaces for subsequent operation in the same manner.

High temperature lubrication for metal and ceramic bearings

A method is disclosed to provide a ceramic article with a protective coating which resists mechanical wear at elevated temperatures up to 500.degree. C. and higher. The coating is applied by first chemically depositing the oxide product layer of a transition metal element on the uncoated ceramic surface and thereafter vapor depositing an adherent organic polymer lubricating film on the oxide product layer. Ceramic materials provided with such protective coating include silicon carbide, silicon nitride and vitreous silica.

Elevated temperature method to adhere wear resistant polymer coating to

Ceramic bearing means being operated at elevated temperatures under atmospheric conditions are lubricated with metal oxide products. The lubricants are formed in situ by continuously oxidizing a metal source located in physical proximity to the ceramic bearing surfaces during operation of such bearing means.

Metal oxide lubrication for ceramic bearing system

Means are disclosed to provide a ceramic article with a protective coating which resists mechanical wear at elevated temperatures up to 500.degree. C. and higher. The coating is applied by first chemically depositing activating metal ions on the uncoated ceramic surface and thereafter vapor depositing an adherent organic polymer lubrication film on the activated surface. Ceramic materials provided with such protective coating include silicon carbide, silicon nitride and vitreous silica.

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Lyndhurst, OH, United States of America

Edgar E Graham