Fuel for nuclear power and manufacturing method therefor
Description
The present invention promotes deposition and fixation of radioactivity in reactor water to zirconium liner fuels in a BWR type reactor to prevent fuel degradation due to impurities in reactor water. Oxidation treatment is carried out in high temperature steams or in an atmosphere containing oxygen until monoclinic zirconium is formed on the outer surface of a zircaloy cladding tube to form fine unevenness having a size of not greater than 1μm on the surface. According to the present invention, the deposition and fixation of radioactivity in reactor water to the zirconium liner fuels is promoted. As a result, the concentration of radioactivity in the reactor water in a BWR type plant can be reduced, thereby enabling to suppress corrosion of cladding tubes due to impurities in reactor water. (I.S.)
Availability note (English)
Available from JAPIO. Also available from EPO.Additional details
Publishing Information
- Imprint Pagination
- 7 p.
- IPC:
- Int. Cl. G21C3/20; G21C3/06; G21C21/02.
- IPC
- Int. Cl. G21C3/20; G21C3/06; G21C21/02.
- Patent number
- JP patent document 7-325181/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 27051627
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- BWR TYPE REACTORS; COOLANTS; FUEL CANS; LINERS; NUCLEAR FUELS; SURFACE COATING; SURFACE FINISHING; ZIRCALOY; ZIRCONIUM
- Descriptors DEC
- ALLOYS; DEPOSITION; ELEMENTS; ENERGY SOURCES; ENRICHED URANIUM REACTORS; FUELS; MATERIALS; METALS; POWER REACTORS; REACTOR MATERIALS; REACTORS; THERMAL REACTORS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS; WATER COOLED REACTORS; WATER MODERATED REACTORS; ZIRCONIUM ALLOYS; ZIRCONIUM BASE ALLOYS
Optional Information
- Secondary number(s)
- JP patent application 7-82222.