Union Carbide Corporation

Praxair S.t. Technology, Inc.

Union Carbide Coatings Service Technology Corp.

John E Jackson

Jean M Quets

Robert C Tucker, Jr

Hideo Nitta

Thomas A Adler

Katoh Shoichi

Masahiko Amano

Yasushi Kurisu

Keiichiro Ohno

Marianne O'Connor Price

Anthony J Stavros

Lynn M McCaslin

Thomas Alan Taylor

Robert Wagner Meyerhoff

Norman Louis Balmer

William G Doherty

This invention provides a unique gas shield or shroud surrounding the effluent of a thermal spray device that effectively can extend the working distance or standoff between the thermal spray device and the surface being coated. This invention provides a method of spraying materials, including ceramic materials and reactive materials, at a long standoff and a method of controlling the temperature of the effluent being deposited using heated gas shield.

Method of shielding effluents in spray devices

A gas seal for rotary shaft applications in which at least a portion of a contact surface of one member of the seal that has relative motion with and in contact with a second member of the seal is coated with a chromium carbide-age hardenable nickel base alloy. The process for depositing and heating the coating is also claimed.

Rotary seal member coated with a chromium carbide-age hardenable nickel

A process of providing a thermal spray powder feed coating composition composed of stabilized zirconia mixed with zircon and a selected oxide, such as yttria, to form a refractory oxide coating ideally suited for hearth rolls for annealing steel.

Hearth roll

A thermal spray powder feed coating composition composed of stabilized zirconia mixed with zircon and a selected oxide, such as yttria, to form a refractory oxide coating ideally suited for hearth rolls for annealing steel. Process for producing the coating and the coated article so produced is also disclosed.

Process for forming a refractory oxide coating

A thermal spray powder feed coating composition composed of stabilized zirconia mixed with zircon and a selected oxide, such as yttria, to form a refractory oxide coating ideally suited for hearth rolls for annealing steel Process for producing the coating and the coated article so produced is also disclosed.

Powder feed composition for forming a refraction oxide coating, process

An improved erosion resistant coating for a gas path component of a turbo machine which comprises the thermal spraying of a chromium carbide, such as Cr.sub.3 C.sub.2, and an age hardenable nickel base alloy, such as Inconel 718, onto the gas path component and then, preferably, heat treating the deposited coating to harden the coating.

Process for producing chromium carbide-nickel base age hardenable alloy

A tungsten chromium carbide-nickel coated article and process for producing it in which the coating contains chromium-rich particles having at least 3 times more chromium than tungsten and wherein said chromium-rich particles comprise at least about 4.5 volume percent of the coating.

Method of producing tungsten chromium carbide-nickel coatings having

Tungsten chromium carbide-nickel coatings for various articles

The invention relates to a fuel-oxidant mixture for detonation gun applications comprising an oxidant such as oxygen and a fuel mixture of two combustible gases such as acetylene and propylene. The invention also relates to articles coated in a process using this fuel-oxidant mixture.

Fuel-oxidant mixture for detonation gun flame-plating

A rotary gas seal in which a first member, e.g., a tip, cooperates with a second member to inhibit gas flow therebetween, the improvement wherein, the tip is provided with a ceramic or metallic coating bonded thereto, the surface of the coating having a plurality of laser-formed depressions and providing a wear-resistant, cutting surface capable of cutting into the second member. Also, a turbine or compressor blade having a tip surface adapted to cooperate with a sealing surface to form a seal between the blade and the sealing surface and a ceramic or metallic carbide coating bonded to said tip surface, the coating having a plurality of laser-formed depressions and providing a wear-resistant, cutting surface capable of cutting into the sealing surface.

Wear resistant, abrasive laser-engraved ceramic or metallic carbide

The invention relates to a coated article comprising a substrate coated with a tungsten carbide-cobalt layer having a strain-to-fracture greater than 4.3.times.10.sup.-3 inch per inch and a Vickers hardness of greater than about 875 HV.sub.0.3.

Tungsten carbide-cobalt coatings for various articles

A coating composition applied to a substrate by a thermal spray process which consists essentially of from about 6.5 to about 9.0 weight percent cobalt, from about 2.0 to about 4.0 weight percent chromium, from about 3.0 to about 4.0 weight percent carbon and the balance tungsten.

Wear and corrosion resistant coatings and method for producing the same

A coating composition applied to a substrate by a thermal spray process which consists essentially of from about 11.0 to about 18.0 weight percent cobalt, from about 2.0 to about 6.0 weight percent chromium, from about 3.0 to about 4.5 weight percent carbon and the balance tungsten.

High strength, wear and corrosion resistant coatings and method for

High strength, wear and corrosion resistant coatings

In a centrifugal fan having radially directed fan blades, each having, in combination, a serrated surface forming in longitudinal cross-section a sawtooth configuration in the radial direction of the rotating blade with a wear resistant coating over a substantial area of the serrated surface.

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Brownsburg, IN, United States of America

John E Jackson