Published May 8, 1980
| Version v1
Patent
Open
Process for ultimate storage of radioactive fission products
Description
In order to exclude cracking in the cooling phase during sealing of radioactive oxidic fission products in glass melts, metallic filling elements - e.g. wires, tissues - are proposed to be incorporated in the mould before the glass melt is poured in. Especially nickel alloys with corrosion proof surface layers, e.g. titanium nitride, silicon carbide, silicon nitride, aluminium oxide, suit best. These elements reduce thermal stresses and effect high thermal conductance towards the mould wall. (UWI)
Availability note (English)
MF available from INIS under the Report Number; Available from Deutsches Patentamt, Muenchen (Germany, F.R.).Abstract (German)
Um beim Einschmelzen radioaktiver oxidischer Spaltprodukte in Glasschmelzen in der Abkuehlphase eine Rissbildung auszuschliessen, wird vorgeschlagen, in die Kokille Fuellelemente metallischer Form - z.B. Draehte, Gewebe - einzubringen, ehe die Glasschmelze eingegossen wird. Besonders geeignet sind nickelhaltige Legierungen mit Korrosionsbestaendigen Oberflaechenschichten, wie z.B. Titannitrid, Siliziumcarbid, Siliziumnitrid, Aluminiumoxid. Diese Elemente bauen thermische Spannungen ab und bewirken hohe Waermeableitung zur Kokillenwand. (UWI)Files
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Additional details
Additional titles
- Original title (German)
- Verfahren zur Endlagerung radioaktiver Spaltprodukte
Publishing Information
- Imprint Pagination
- 10 p.
- IPC:
- Int. Cl. G21F 9/16; G21F 9/30.
- IPC
- Int. Cl. G21F 9/16; G21F 9/30.
- Patent number
- DE patent document 2846845/A/
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 14738733
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Descriptors DEI
- FISSION PRODUCTS; GLASS; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE PROCESSING; RADIOACTIVE WASTE STORAGE; SILICON COMPOUNDS; SOLIDIFICATION
- Descriptors DEC
- ISOTOPES; MANAGEMENT; MATERIALS; RADIOACTIVE MATERIALS; STORAGE; WASTE DISPOSAL; WASTE MANAGEMENT; WASTE PROCESSING; WASTE STORAGE