Published August 1994 | Version v1
Journal article Metadata-only

Influence of neutron irradiation on structure and properties of U3 Si

Creators

  • 1. Vsesoyuznyj Nauchno-Issledovatel'skij Inst. Neorganicheskikh Materialov, Moscow (Russian Federation)
  • 2. Moskovskij Inzhenerno-Fizicheskij Inst., Moscow (Russian Federation)

Description

A study is made into the structure, heat release and dimensional changes in uranium silicide under neutron irradiation. Irradiation up to 2 x 1023 fission/m3 burnout (T∼ 100 deg C) is revealed to promote transformation of ordered BCC structure into disordered FCC one. The burnout of 2 x 1024 fission/m3 results in amorphous structure. Radiation-induced amorphous structure is thermally instable and above 250 deg C into the crystallization proceeds accompanied by thermal effect within a narrow temperature range near 350 deg C. Creep rate of amorphous specimens exceeds that of crystalline ones 60-70 times. The mechanism of radiation creep in amorphous uranium silicide is explained. 18 refs., 3 figs

Additional details

Additional titles

Original title (Russian)
Влияние нейтронного облучения на структуру и свойства моносилицида урана

Publishing Information

Journal Title
Atomnaya Ehnergiya
Journal Volume
77
Journal Issue
2
Journal Page Range
p. 123-129.
ISSN
0004-7163
CODEN
AENGAB

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
26052353
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BURNOUT; CREEP; CRYSTAL-PHASE TRANSFORMATIONS; CRYSTALLIZATION; HEAT TRANSFER; IRT REACTOR; ORDER-DISORDER TRANSFORMATIONS; PHYSICAL RADIATION EFFECTS; URANIUM SILICIDES
Descriptors DEC
ACTINIDE COMPOUNDS; ENERGY TRANSFER; ENRICHED URANIUM REACTORS; IRRADIATION REACTORS; ISOTOPE PRODUCTION REACTORS; MECHANICAL PROPERTIES; PHASE TRANSFORMATIONS; POOL TYPE REACTORS; RADIATION EFFECTS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SILICIDES; SILICON COMPOUNDS; THERMAL REACTORS; URANIUM COMPOUNDS; WATER COOLED REACTORS; WATER MODERATED REACTORS