Ceramic fuel element for a gas-cooled nuclear reactor including a metallic fuel container provided with an oxidation resistant coating

摘要

1,081,512. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Jan. 10, 1966 [Jan. 22, 1965], No. 3042/65. Heading G6C. To permit the fuel element of an advanced gas-cooled reactor to operate at a higher temperature in the range 900-1000‹ C. the fuel element can is provided with a thin coating of oxidation resistant material. For example, when the can is of a nickel based iron-containing alloy a coating of aluminium is provided. When the can is of stainless steel the coating is of nickel with an intjerlayer of alumina to prevent diffusion of the nickel into the can. The coating may be applied by vapour phase deposition or electroplating. Alternative oxidation resistant coatings are chromium, silicon or glasses.