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Title: Analysis of the Structure of Heavy Ion Irradiated LaFeO3 Using Grazing Angle X-ray Absorption Spectroscopy

Journal Article · · Inorganic Chemistry
ORCiD logo [1]; ORCiD logo [2];  [1];  [1]; ORCiD logo [3]; ORCiD logo [1]
  1. University of Sheffield (United Kingdom)
  2. University of Sheffield (United Kingdom); University of Bristol (United Kingdom)
  3. University of Bristol (United Kingdom); Washington State University, Pullman, WA (United States)
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Crystalline ceramics are candidate materials for the immobilization of radionuclides, particularly transuranics (such as U, Pu, and Am), arising from the nuclear fuel cycle. Due to the α-decay of transuranics and the associated recoil of the parent nucleus, crystalline materials may eventually be rendered amorphous through changes to the crystal lattice caused by these recoil events. Previous work has shown irradiation of titanate-based ceramics to change the local cation environment significantly, particularly in the case of Ti which was shown to change from 6- to 5-fold coordination. Here, this work expands the Ti-based study to investigate the behavior in Fe-based materials, using LaFeO3 as an example material. Irradiation was simulated by heavy ion implantation of the bulk LaFeO3 ceramic, with the resulting amorphous layer characterized with grazing angle X-ray absorption spectroscopy (GA-XAS). Insights into the Fe speciation changes exhibited by the amorphized surface layer were provided through quantitative analysis, including pre-edge analysis, and modeling of the extended X-ray absorption fine structure (EXAFS), of the GA-XAS data.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-98CH10886
OSTI ID:
2469588
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 19 Vol. 63; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (23)

Crystal Structure Refinement and Stability of LaFexNi1−xO3Solid Solutions journal November 1997
Alpha-decay damage in minerals of the pyrochlore group journal October 1988
Effects of self-radiation damage in Cm-doped Gd2Ti2O7 and CaZrTi2O7 journal April 1986
Amorphization of zirconolite: alpha-decay event damage versus krypton ion irradiation journal March 1992
Detailed in situ study of ion beam-induced amorphization of zircon journal March 1992
In situ studies of ion irradiated zirconolite, pyrochlore and perovskite journal November 1997
Resistance to amorphisation in Ca1-xLa2x/3TiO3 perovskites – a bulk ion-irradiation study journal November 2019
The structure of ion beam amorphised zirconolite studied by grazing angle X-ray absorption spectroscopy
  • Reid, D. P.; Stennett, M. C.; Ravel, B.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12 https://doi.org/10.1016/j.nimb.2010.02.026
journal June 2010
Introduction to XAFS book January 2010
Spectroscopic Investigations of the Structural Phase Transition in Gd 2 (Ti 1 - y Zr y ) 2 O 7 Pyrochlores journal May 2002
The role of non-stoichiometric defects in radiation damage evolution of SrTiO3 journal January 2013
Nuclear waste disposal—pyrochlore (A2B2O7): Nuclear waste form for the immobilization of plutonium and “minor” actinides journal June 2004
In situ radiation damage studies of LaxSr1−3x∕2TiO3 perovskites journal April 2008
Larch: An Analysis Package for XAFS and Related Spectroscopies journal April 2013
The HADES Facility for High Activity Decommissioning Engineering & Science: part of the UK National Nuclear User Facility journal April 2020
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Aging Effects on Curium-Doped Titanate Ceramic Containing Sodium-Bearing High-Level Nuclear Waste journal February 1992
Ion-Bombardment-Induced Radiation Damage in some Ceramics and Ionic Crystals: Determined by Electron Diffraction and gas Release Measurements journal May 1966
Radiation effects in crystalline ceramics for the immobilization of high-level nuclear waste and plutonium journal June 1998
The Relative Radiation Resistance of Zirconolite, Pyrochlore, and Perovskite to 1.5 MeV Kr + Ions journal January 1997
Amorphisation of Perovskite: the Effectofcomposition and Pre-Existing Cation Vacancies journal January 1999
Oxidation state and coordination of Fe in minerals: An Fe K- XANES spectroscopic study journal May 2001
A feasibility investigation of speciation by Fe K-edge XANES using a laboratory X-ray absorption spectrometer journal April 2020

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Ceramics
Chemistry
Extended X-ray absorption fine structure
Ions
Irradiation
Layers