Published November 2002 | Version v1
Book Metadata-only

Studies on the air-oxidation behavior of uranium dioxide. 1. Phase transformation from (U1-yGdy)O2 to (U1-yGdy)3O8

Creators

  • 1. Korea Atomic Energy Research Institute, Nuclear Chemistry Research Team, Taejon (Korea, Republic of)

Description

The effect of dopant on the phase transformation from UO2 to U3O8 was investigated using X-ray diffraction (XRD) analysis. Sample powders of Gd-doped stoichiometric UO2 of various dopant contents (y=0-0.16 in U1-yGdyO2) were oxidized at 250, 305, 340, 420 and 700degC for 4 hours under continuous air flow and the structural changes were measured. The fractions of (U1-yGdy)O2 , (U1-yGdy)4O9, (U1-yGdy)3O7 and (U1-yGdy)3O8 were identified from the peak intensity of each phase. It is confirmed that a tendency of retardation or inhibition by Gd content in the oxidation reaction from UO2 to U3O8. (author)

Availability note (English)

Available from the Internet at URL https://doi.org/10.1080/00223131.2002.10875581
Part of:
Proceedings of actinide 2001 international conference

Additional details

Identifiers

DOI
10.1080/00223131.2002.10875581;

Publishing Information

Publisher
Atomic Energy Society of Japan
Imprint Place
Tokyo (Japan)
Imprint Title
Proceedings of actinide 2001 international conference
Imprint Pagination
986 p.
Journal Page Range
p. 772-775

Conference

Title
Actinide 2001 international conference
Dates
4-9 Nov 2001
Place
Hayama, Kanagawa (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
51054722
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL COMPOSITION; COMPARATIVE EVALUATIONS; DOPED MATERIALS; GADOLINIUM OXIDES; INHIBITION; OXIDATION; PHASE TRANSFORMATIONS; SPENT FUELS; TEMPERATURE DEPENDENCE; THERMAL GRAVIMETRIC ANALYSIS; TRACE AMOUNTS; URANIUM DIOXIDE; X-RAY DIFFRACTION
Descriptors DEC
ACTINIDE COMPOUNDS; CHALCOGENIDES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; ENERGY SOURCES; EVALUATION; FUELS; GADOLINIUM COMPOUNDS; GRAVIMETRIC ANALYSIS; MATERIALS; NUCLEAR FUELS; OXIDES; OXYGEN COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; RARE EARTH COMPOUNDS; REACTOR MATERIALS; SCATTERING; THERMAL ANALYSIS; URANIUM COMPOUNDS; URANIUM OXIDES

Optional Information

Notes
16 refs., 5 figs., 1 tab.; This record replaces 34039930