The United States of America As Represented by the United States

The Babcock & Wilcox Company

Charles E Devore

Richard A Lowden

David P Stinton

Walter J Lackey, Jr

Anthony J Caputo

Helen H Moeller

Peter Angelini

Raymond E Blanco

An apparatus and process for the chemical vapor deposition of a matrix into a preform having circumferentially wound ceramic fibers, comprises heating one surface of the preform while cooling the other surface thereof. The resulting product may have fibers that are wound on radial planes or at an angle from the radial planes. The fibers can also be precoated with pyrolytic carbon before application of the matrix. The matrix is applied by passing reactant gas through the preform thereof to the other side thereof for the initial deposition of matrix near such other surface of the preform. The matrix fills in the preform from the other side surface thereof to the surface of the side of application thereof until a desired amount of matrix has been deposited.

CVD apparatus and process for the preparation of fiber-reinforced

A method for direct chemical vapor deposition of silicon carbide to substrates, especially nuclear waste particles, is provided by the thermal decomposition of methylsilane at about 800.degree. C. to 1050.degree. C. when the substrates have been confined within a suitable coating environment.

Method of deposition of silicon carbide layers on substrates and product

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Knoxville, TN, United States of America

Charles E Devore