Westinghouse Electric Sweden Ab

Westinghouse Electric Company LLC

Simon Charles Middleburgh

Edward Jean Lahoda

Peng Xu

Lars Hallstadius

Mattias Puide

Magnus Limbäck

Paul Blair

Kenneth GÖRANSSON

A nuclear fuel pellet for a nuclear reactor is disclosed. The pellet comprises a metallic matrix and ceramic fuel particles of a fissile material dispersed in the metallic matrix. The metallic matrix is an alloy consisting of the principle elements U, Zr, Nb and Ti, and of possible rest elements. The concentration of each of the principle elements in the metallic matrix is at the most 50 molar-%.

Nuclear fuel pellet, a fuel rod, and a fuel assembly

A uranium oxide fuel pellet having an inner region and an outer rim region about the inner region, and that the fuel pellet is cylindrical and the inner region and outer rim region are coaxial cylindrical regions. The outer rim region has an excess of oxygen in comparison to the inner region, wherein high burnup structure (HBS) formation will be suppressed or delayed. Preferably, the excess oxygen is obtained by a chemical treatment by immersing the pellet in hydrogen peroxide (HO) or potassium permanganate (KMnO) in solution.

Fuel pellet

A fuel assembly for a nuclear reactor, a fuel rod of the fuel assembly, and a ceramic nuclear fuel pellet of the fuel rod are disclosed. The fuel pellet includes a first fissile material of UB, The boron of the UBis enriched to have a concentration of the isotopeB that is higher than for natural B.

Ceramic nuclear fuel having UB2 enriched in 11B

The method described herein may be characterized as reacting uranium dioxide with carbon to produce uranium carbide, and, reacting the uranium carbide with a silane, a silicon halide, a siloxane, or combinations thereof, and excess hydrogen to produce uranium silicide.

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Chester, United Kingdom

Simon Charles Middleburgh