Published February 7, 1980 | Version v1
Patent Open

Fast safety melt breeder element

Creators

Description

The premanent separation of the central natural uranium, the PuO2 fission zone and the sleeve tube of the fuel element for the sodium-cooled fast breeder is provided by protective layers made of inter-metal compounds which slow down diffusion. Fe2Ta is placed between the sleeve tube and the fission melt and U2Zn17 is placed between the fuel and breeding material. A Bethe-Tait excursion can be prevented by the Zn vapour formed. (RW)

Availability note (English)

MF available from INIS under the Report Number; Available from Deutsches Patentamt, Muenchen, Germany, F.R.

Abstract (German)

Die dauerhafte Trennung von Naturoranzentrum, PuO2-Spaltstoffzone und Huellrohr des Be fuer den Na-gekuehlten SB erfolgt mittels diffusionshemmender Schutzschichten aus intermetallischen Verbindungen. Zwischen Huellrohr und Spaltstoffschmelze wird hierzu Fe2Ta und zwischen Spaltstoff und Brutstoff U2Zn17 gebracht. Eine Bethe-Tait-Exkursion kann durch entstehende Zn-Daempfe verhindert werden. (RW)

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Additional details

Additional titles

Original title (German)
Schnelles Sicherheits-Schmelze Brueter-Element

Publishing Information

Imprint Pagination
7 p.
IPC:
Int. Cl. G21C 3/52.
IPC
Int. Cl. G21C 3/52.
Patent number
DE patent document 2832552/A/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
13650954
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
BETHE-TAIT METHOD; EXCURSIONS; FUEL ELEMENTS; INTERMETALLIC COMPOUNDS; LMFBR TYPE REACTORS; TANTALUM COMPOUNDS; ZINC COMPOUNDS
Descriptors DEC
ACCIDENTS; ALLOYS; BREEDER REACTORS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; LIQUID METAL COOLED REACTORS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; TRANSITION ELEMENT COMPOUNDS