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Avco Corporation

Richard Dyson Webb

Thomas Vasilos

A high temperature vacuum furnace which has an internal thermal insulation system to reduce heat losses and an external vacuum vessel which is designed to safely dissipate all heat generated within the furnace to the surrounding air. The vacuum vessel wall remains at a low enough temperature to ensure structural integrity and at a low enough temperature to protect elastomer seals without the use of water cooling.

High temperature air cooled vacuum furnace

Carbon composite materials of increased resistance to oxidation are produced by heating a porous carbon composite material to an elevated temperature in a reaction chamber and introducing into said chamber a gas mixture comprising a decomposable boron-containing gas and a diluent and effecting deposition of boron as a solid on the walls of the pores of said composite as a consequence of said boron-containing gas decomposing.

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Wellesley, MA, United States of America

Richard Dyson Webb