Published March 26, 1993 | Version v1
Patent Metadata-only

Manufacturing method for nuclear fuel sintering product

Creators

Description

In a method of manufacturing a nuclear fuel sintering product having an oxygen/uranium ratio (O/U) controlled to 1.98 to 2.02, a powder mixture comprising 40 to 1% by weight of a powder undergoing thermal hysteresis of higher than 800degC and 60 to 100% by weight of a powder undergoing thermal hysteresis of lower than 800degC is used as U3O8 powders. Then, sintering is conducted in an oxidative atmosphere containing 10 to 200ppm of air or oxygen and nitrogen and/or argon gas at a heating temperature of 800 to 1400degC. With such procedures, the sintering density and pore distribution of the nuclear fuel sintering product can be controlled to a predetermined value. (T.M.)

Availability note (English)

Available from JAPIO. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
11 p.
IPC:
Int. Cl. G21C21/02.
IPC
Int. Cl. G21C21/02.
Patent number
JP patent document 5-72384/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
24075188
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ATMOSPHERES; CONCENTRATION RATIO; DENSITY; HEAT TREATMENTS; NUCLEAR FUELS; OXIDATION; POROSITY; POWDERS; REDUCTION; SINTERED MATERIALS; SINTERING; TEMPERATURE RANGE 1000-4000 K; URANIUM OXIDES
Descriptors DEC
ACTINIDE COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ENERGY SOURCES; FABRICATION; FUELS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; REACTOR MATERIALS; TEMPERATURE RANGE; URANIUM COMPOUNDS

Optional Information

Secondary number(s)
JP patent application 3-91748.