Published October 2015 | Version v1
Journal article Metadata-only

Partitioning of rhodium and ruthenium between Pd–Rh–Ru and (Ru,Rh)O2 solid solutions in high-level radioactive waste glass

Creators

  • 1. Center for Engineering Science, Akita University, 1-1, Tegatagakuenmachi, Akita City, Akita 010-8502 (Japan)
  • 2. Research and Development Department, Reprocessing Business Division, Japan Nuclear Fuel Limited, 4-108, Okitsuke, Obuchi, Rokkasho-mura, Aomori 039-3212 (Japan)

Description

The partitioning of rhodium and ruthenium between Pd–Rh–Ru alloy with a face-centered cubic (FCC) structure and (Ru,Rh)O2 solid solution has been investigated between 1273 and 1573 K at atmospheric oxygen fugacity. The rhodium and ruthenium contents in FCC increase, while the RhO2 content in (Ru,Rh)O2 decreases with increasing temperature due to progressive reduction of the system. Based on the experimental results and previously reported thermodynamic data, the thermodynamic mixing properties of FCC phase and (Ru,Rh)O2 have been calibrated in an internally consistent manner. Phase equilibrium of platinum grope metals in an HLW glass was calculated by using the obtained thermodynamic parameters.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jnucmat.2015.06.040

Additional details

Identifiers

DOI
10.1016/j.jnucmat.2015.06.040;
PII
S0022-3115(15)30065-9;

Publishing Information

Journal Title
Journal of Nuclear Materials
Journal Volume
465
Journal Page Range
p. 590-596
ISSN
0022-3115
CODEN
JNUMAM

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48034488
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
FCC LATTICES; GLASS; HIGH-LEVEL RADIOACTIVE WASTES; OXYGEN; PALLADIUM ALLOYS; PARTITION; PLATINUM; RHODIUM; RHODIUM ALLOYS; RHODIUM OXIDES; RUTHENIUM; RUTHENIUM ALLOYS; SOLID SOLUTIONS
Descriptors DEC
ALLOYS; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; MATERIALS; METALS; MIXTURES; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PLATINUM METAL ALLOYS; PLATINUM METALS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; RHODIUM COMPOUNDS; SOLUTIONS; THREE-DIMENSIONAL LATTICES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; WASTES

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.