Published October 1987
| Version v1
Book
Homogenization of thorium and uranium in ThO2-UO2 solid solution during sintering
Creators
- 1. Kyushu Univ., Fukuoka (Japan). Faculty of Engineering
Description
ThO2(80%)-UO2(20%) solid solutions was fabricated by mechanical blending of powders, pressing and subsequent sintering in the temperature region 1350-1950deg C. The degree of homogeneity was evaluated by X-ray diffraction and then interdiffusion coefficient was calculated from it, based on the concentric sphere diffusion model. Temperature dependence of interdiffusion coefficient, D was given by the following equation. D = 1.95 x 10-9 exp (- 49,000/RT)cm2/sec. Diffusion mechanism was discussed by comparing the value of activation energy with data in other diffusion studies. (author)
Additional details
Publishing Information
- Publisher
- Ministry of Education, Science and Culture.
- Imprint Place
- Tokyo (Japan)
- Imprint Title
- Research on thorium fuel
- Imprint Pagination
- 298 p.
- Journal Page Range
- p. 121-126.
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 19084406
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- DIFFUSION; MIXED OXIDE FUELS; MIXING; POWDERS; SINTERING; SOLID SOLUTIONS; THORIUM OXIDES; URANIUM DIOXIDE; VERY HIGH TEMPERATURE; X-RAY DIFFRACTION
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ENERGY SOURCES; FABRICATION; FUELS; HOMOGENEOUS MIXTURES; MATERIALS; MIXTURES; NUCLEAR FUELS; OXIDES; OXYGEN COMPOUNDS; REACTOR MATERIALS; SCATTERING; SOLID FUELS; SOLUTIONS; THORIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES