THERMIONIC FUEL ELEMENT Russian patent published in 2017 - IPC H01J45/00 

FIELD: electricity.

SUBSTANCE: invention can be used when developing the long-resourced thermionic electrogenerated channels (EGC). The fuel element design is offered. It comprises the pressurized shell, which is comprised of the strengthened monocrystalline alloy W-Ta or W-Nb, and the dispersive core placed inside. This core is made on the basis of the uranium dioxide, the particles of which are equally spaced in matrix, made of the polycrystalline molybdenum. Upon that, the central channel is implemented in the core, the size of which is selected from the ratio: , where ; - the unit volume expansion (swelling) of the fuel-element kernel; d_c - the central channel diameter; d_ker - the fuel-element kernel outside diameter.

EFFECT: invention allows to produce the thermionic fuel element of the dispersive type with the maintenance of the dimensional stability of the fuel element jacket.

2 cl, 1 tbl, 1 dwg