Published December 1980
| Version v1
Journal article
Preparation and properties of some phases in the system Nd2O3-CeO2-ZrO2-RuO2
- 1. Univ of Aberdeen, Scotl
Description
Compound formation relevant to the calcination of radioactive waste was studied by heating Nd2Ce2O7-Nd2Zr2O7-Nd2Ru2O7 compositions in air at 1200 to 14000C and determining the phase distributions by X-ray diffraction and the phase compositions by analytical electron microscopy. Nd2Zr2O7 and Nd2Ru2O7 both have the pyrochlore structure, but do not form complete solid solutions. The equilibria between Ce-rich fluorite and the pyrochlore phase(s) are complicated by the appearance of a new phase shown to be (Nd,Ce)2(Ru,Ce)O5. Indexed powder data (59 reflections) are given for the Ce-free composition, Nd2RuO5. 6 refs
Additional details
Publishing Information
- Journal Title
- Mater. Res. Bull.
- Journal Volume
- 15
- Journal Issue
- 12
- Series
- Mater. Res. Bull.
- Journal Page Range
- 1811-1816
- ISSN
- 0025-5408
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12639282
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Descriptors DEI
- CALCINATION; CERIUM OXIDES; ELECTRON MICROSCOPY; HEATING; NEODYMIUM OXIDES; PHASE STUDIES; RADIOACTIVE WASTE PROCESSING; RUTHENIUM OXIDES; SOLIDIFICATION; VERY HIGH TEMPERATURE; X-RAY DIFFRACTION; ZIRCONIUM OXIDES
- Descriptors DEC
- CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; DECOMPOSITION; DIFFRACTION; MANAGEMENT; MICROSCOPY; NEODYMIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PYROLYSIS; RARE EARTH COMPOUNDS; RUTHENIUM COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING; ZIRCONIUM COMPOUNDS