The Aerospace Corporation

Howard A Katzman

Wei H Kao

Russell A Lipeles

Eric M Slater

Camille A Gaulin

Filaments are coated with MgO to create an effective diffusion barrier between the filament and the matrix in a metal matrix composite, thereby improving the strength and the service life of the composite.

Diffusion barrier for high temperature composites

An improved process for fabricating barium calcium aluminum impregnants for dispenser cathodes is described. The resulting cathodes have improved lifetimes and reliability through the use of organometallic starting materials in the impregnant process.

Process for forming barium calcium aluminate dispenser cathode

A carbon fiber reinforced metal matrix composite is produced by carbide coating the surface of the fibers by passing the fibers through an organometallic solution followed by pyrolysis of the organometallic compounds. The carbide coated fibers, so produced are readily wettable without degradation when immersed in a molten bath of metal matrix material containing an active alloying element.

Carbide coatings for fabrication of carbon-fiber-reinforced metal matrix

A catalyst introduced into the filament of a carbon fiber to enhance thermal oxidation thereby ensuring complete combustion of the fiber along with its matrix in composites in an unanticipated or deliberate incineration.

Enhanced carbon fiber combustion using a catalyst

A carbon fiber reinforced metal matrix composite is produced by metal oxide coating the surface of the fibers by passing the fibers through an organometallic solution followed by pyrolysis or hydrolysis of the organometallic compounds. The metal oxide coated fibers so produced are readily wettable without degradation when immersed in a molten bath of the metal matrix material.

Carbon-reinforced metal-matrix composites

Carbon fibers in a carbon-fiber-reinforced metal-matrix composite having a relatively very high modulus are treated with a relatively thin amorphous carbon coating precedent to a metal-oxide film to improve the adhesion thereof to the carbon fiber thereby facilitating the wetting of carbon fibers to molten matrix metal.

Growing community of inventors

Los Angeles, CA, United States of America

Howard A Katzman