Published August 31, 2008 | Version v1
Journal article Metadata-only

The high-temperature behaviour of PuPO4 monazite and some other related compounds

Creators

  • 1. European Commission, Joint Research Centre, Institute for Transuranium Elements, P.O. Box 2340, 76125 Karlsruhe (Germany)
  • 2. 'Al.I. Cuza' University, Department of Chemistry, 11 - Carol I Boulevard, 700506 Iasi (Romania)

Description

Thermal behaviour and lattice parameters of monazites MPO4 (M3+ = Ce3+, Nd3+ and Pu3+) and cheralite CaTh(PO4)2 were studied using high-temperature X-ray diffraction. Heat treatment under inert atmosphere caused the decomposition of PuPO4 and CaTh(PO4)2 into the corresponding oxides above 1473 K. The influence of the cation type within the crystallographic structure on the thermal expansion coefficient and the possible cation substitutions are discussed in the frame of nuclear waste management

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jnucmat.2008.05.011

Additional details

Identifiers

DOI
10.1016/j.jnucmat.2008.05.011;
PII
S0022-3115(08)00314-0;

Publishing Information

Journal Title
Journal of Nuclear Materials
Journal Volume
378
Journal Issue
2
Journal Page Range
p. 167-171
ISSN
0022-3115
CODEN
JNUMAM

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40002247
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CALCIUM PHOSPHATES; CATIONS; CERIUM IONS; CERIUM PHOSPHATES; CRYSTALLOGRAPHY; HEAT TREATMENTS; INERT ATMOSPHERE; LATTICE PARAMETERS; MONAZITES; NEODYMIUM IONS; NEODYMIUM PHOSPHATES; PLUTONIUM IONS; PLUTONIUM PHOSPHATES; RADIOACTIVE WASTE MANAGEMENT; TEMPERATURE RANGE 1000-4000 K; THERMAL EXPANSION; THORIUM PHOSPHATES; X-RAY DIFFRACTION
Descriptors DEC
ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; ATMOSPHERES; CALCIUM COMPOUNDS; CERIUM COMPOUNDS; CHARGED PARTICLES; COHERENT SCATTERING; CONTROLLED ATMOSPHERES; DIFFRACTION; EXPANSION; IONS; MANAGEMENT; MATERIALS; MINERALS; NEODYMIUM COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHATE MINERALS; PHOSPHATES; PHOSPHORUS COMPOUNDS; PLUTONIUM COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; RARE EARTH COMPOUNDS; SCATTERING; TEMPERATURE RANGE; THORIUM COMPOUNDS; THORIUM MINERALS; TRANSURANIUM COMPOUNDS; WASTE MANAGEMENT

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.