Abstracts and Available Papers Presented at the
1996 International RERTR Meeting
BEHAVIOR ANALYSIS OF U3Si-Al FUEL
IN MP TYPE FUEL ELEMENTS UNDER IRRADIATION
A.V. Vatulin
All-Russian Scientific Research Institue
for Inorganic Materials (ARSRIIM)
Moscow, Russia
ABSTRACT
Uranium silicide U3Si is considered as perspective nuclear
fuel for Russian research reactors. In order to resolve the problem of enrichment
reduction this nuclear fuel is the most real alternative for the Uranium
dioxide which is currently used for these purposes.
Within RERTR program two MP type fuel element models with the core consisting
of U3Si nuclear fuel dispersed in an aluminium matrix were tested
in MP reactor. The tests confirmed that the use of U3Si + Al
fuel composition is a perspective solution to reduce fuel element enrichment
in research reactors.
This report represents analysis of post-irradiation tests of the fuel
element models. The goal of the analysis being to establish the value and
the appropriateness of swelling for the Uranium silicide.
The fuel element represents a cylinder tube with four ribs on the outer surface. The claddings are produced of CAB-6 alloy. The contents of nuclear fuel in the core constitute 34% by volume, technological pores constitute 4.5% and the rest is aluminium matrix. The nuclear fuel was produced in ARSRIIM, the fuel elements was produced by ARSRIIM specialists with equipment of NZKH.
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Contact:
Mr. Aleksandr Vatulin
All-Russian Scientific Research Institute
for Inorganic Materials
Rogova 5, P.O. Box 369
Moscow, 123060, Russia
Tel.: +7-095-190-8166
Fax: +7-095-925-5972 (Box A-39)
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