Combined effects of radiation damage and He accumulation on bubble nucleation in Gd2Ti2O7

Taylor, Caitlin A.; Patel, Maulik K.; Aguiar, Jeffery A.; Zhang, Yanwen; Crespillo, Miguel L.; Wen, Juan; Xue, Haizhou; Wang, Yongqiang; Weber, William J.

doi:10.1016/j.jnucmat.2016.07.043

Title: Combined effects of radiation damage and He accumulation on bubble nucleation in Gd₂Ti₂O₇

Abstract

We report that pyrochlores have long been considered as host phases for long-term immobilization of radioactive waste nuclides that would undergo α-decay for hundreds of thousands of years. This work utilizes ion-beam irradiations to examine the combined effects of radiation damage and He accumulation on bubble formation in Gd₂Ti₂O₇ over relevant waste-form timescales. Helium bubbles are not observed in pre-damaged Gd₂Ti₂O₇ implanted with 2 × 10¹⁶ He/cm², even after post-implantation irradiations with 7 MeV Au³⁺ at 300, 500, and 700 K. However, He bubbles with average diameters of 1.5 nm and 2.1 nm are observed in pre-damaged (amorphous) Gd₂Ti₂O₇ and pristine Gd₂Ti₂O₇, respectively, after implantation of 2 × 10¹⁷ He/cm². Lstly, the critical He concentration for bubble nucleation in Gd₂Ti₂O₇ is estimated to be 6 at.% He.

Authors:

Taylor, Caitlin A. ^[1]; Patel, Maulik K. ^[1]; Aguiar, Jeffery A. ^[2]; Zhang, Yanwen ^[3]; Crespillo, Miguel L. ^[1]; Wen, Juan ^[4]; Xue, Haizhou ^[1]; Wang, Yongqiang ^[5]; Weber, William J. ^[6]

The Univ. of Tennessee, Knoxville, TN (United States)
Idaho National Lab. (INL), Idaho Falls, ID (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); The Univ. of Tennessee, Knoxville, TN (United States)
Lanzhou Univ., Gansu (China); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
The Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Fri Jul 22 00:00:00 EDT 2016

Research Org.:: Idaho National Lab. (INL), Idaho Falls, ID (United States); National Renewable Energy Laboratory (NREL), Golden, CO (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC)

OSTI Identifier:: 1396002

Alternate Identifier(s):: OSTI ID: 1293805; OSTI ID: 1356959; OSTI ID: 1359432

Report Number(s):: INL/JOU-16-39501; NREL/JA-5K00-66933
Journal ID: ISSN 0022-3115; PII: S0022311516304536

Grant/Contract Number:: AC07-05ID14517; AC36-08GO28308; AC05-00OR22725; AC52-06NA25396; AC04-94AL85000; NE0000693

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Nuclear Materials

Additional Journal Information:: Journal Volume: 479; Journal Issue: C; Journal ID: ISSN 0022-3115

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; He; He bubble; Oxide; STEM; Waste form; 36 MATERIALS SCIENCE; pyrochlore; helium bubble; radiation damage; nuclear waste; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES

Citation Formats


                    Taylor, Caitlin A., Patel, Maulik K., Aguiar, Jeffery A., Zhang, Yanwen, Crespillo, Miguel L., Wen, Juan, Xue, Haizhou, Wang, Yongqiang, and Weber, William J. Combined effects of radiation damage and He accumulation on bubble nucleation in Gd2Ti2O7.  United States: N. p., 2016. 
Web.  doi:10.1016/j.jnucmat.2016.07.043.

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                    Taylor, Caitlin A., Patel, Maulik K., Aguiar, Jeffery A., Zhang, Yanwen, Crespillo, Miguel L., Wen, Juan, Xue, Haizhou, Wang, Yongqiang, & Weber, William J. Combined effects of radiation damage and He accumulation on bubble nucleation in Gd2Ti2O7.  United States.  https://doi.org/10.1016/j.jnucmat.2016.07.043

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                    Taylor, Caitlin A., Patel, Maulik K., Aguiar, Jeffery A., Zhang, Yanwen, Crespillo, Miguel L., Wen, Juan, Xue, Haizhou, Wang, Yongqiang, and Weber, William J. Fri .  
"Combined effects of radiation damage and He accumulation on bubble nucleation in Gd2Ti2O7".  United States.  https://doi.org/10.1016/j.jnucmat.2016.07.043.  https://www.osti.gov/servlets/purl/1396002.

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@article{osti_1396002,

  title        = {Combined effects of radiation damage and He accumulation on bubble nucleation in Gd2Ti2O7},

  author       = {Taylor, Caitlin A. and Patel, Maulik K. and Aguiar, Jeffery A. and Zhang, Yanwen and Crespillo, Miguel L. and Wen, Juan and Xue, Haizhou and Wang, Yongqiang and Weber, William J.},

  abstractNote = {We report that pyrochlores have long been considered as host phases for long-term immobilization of radioactive waste nuclides that would undergo α-decay for hundreds of thousands of years. This work utilizes ion-beam irradiations to examine the combined effects of radiation damage and He accumulation on bubble formation in Gd2Ti2O7 over relevant waste-form timescales. Helium bubbles are not observed in pre-damaged Gd2Ti2O7 implanted with 2 × 1016 He/cm2, even after post-implantation irradiations with 7 MeV Au3+ at 300, 500, and 700 K. However, He bubbles with average diameters of 1.5 nm and 2.1 nm are observed in pre-damaged (amorphous) Gd2Ti2O7 and pristine Gd2Ti2O7, respectively, after implantation of 2 × 1017 He/cm2. Lstly, the critical He concentration for bubble nucleation in Gd2Ti2O7 is estimated to be 6 at.% He.},

  doi          = {10.1016/j.jnucmat.2016.07.043},

  journal      = {Journal of Nuclear Materials},

  number       = C,

  volume       = 479,

  place        = {United States},

  year         = {Fri Jul 22 00:00:00 EDT 2016},

  month        = {Fri Jul 22 00:00:00 EDT 2016}

}

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Effects of He Irradiation on Yttria-Stabilized Zirconia Ceramics
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Works referencing / citing this record:

He irradiation‐induced lattice distortion and surface blistering of Gd ₂ Zr ₂ O ₇ defect‐fluorite ceramics
journal, January 2020

Huang, Zhangyi; Zhou, Mao; Cao, Zhangkai
Journal of the American Ceramic Society, Vol. 103, Issue 5
DOI: 10.1111/jace.17030

Designing functionality in perovskite thin films using ion implantation techniques: Assessment and insights from first-principles calculations
journal, September 2017

Sharma, Vinit; Herklotz, Andreas; Ward, Thomas Zac
Scientific Reports, Vol. 7, Issue 1
DOI: 10.1038/s41598-017-11158-4

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Title: Combined effects of radiation damage and He accumulation on bubble nucleation in Gd2Ti2O7

Abstract

Citation Formats

Nuclear waste disposal—pyrochlore (A2B2O7): Nuclear waste form for the immobilization of plutonium and “minor” actinides journal, June 2004

Plutonium in Crystalline Ceramics and Glasses journal, September 2001

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Heavy-ion irradiation effects in Gd2(Ti2−xZrx)O7 pyrochlores journal, February 2001

Self-Radiation Damage in Actinide Host Phases of Nuclear Waste Forms journal, January 1984

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Title: Combined effects of radiation damage and He accumulation on bubble nucleation in Gd₂Ti₂O₇

Nuclear waste disposal—pyrochlore (A2B2O7): Nuclear waste form for the immobilization of plutonium and “minor” actinides
journal, June 2004

Plutonium in Crystalline Ceramics and Glasses
journal, September 2001

Radiation effects in crystalline ceramics for the immobilization of high-level nuclear waste and plutonium
journal, June 1998

Systematics of the pyrochlore structure type, ideal A2B2X6Y
journal, June 1984

Oxide pyrochlores — A review
journal, January 1983

Disorder in Pyrochlore Oxides
journal, August 2000

Radiation Tolerance of Complex Oxides
journal, August 2000

Radiation-induced amorphization of rare-earth titanate pyrochlores
journal, October 2003

Ion irradiation-induced phase transformation of pyrochlore and zirconolite
journal, January 1999

Heavy-ion irradiation effects in Gd2(Ti2−xZrx)O7 pyrochlores
journal, February 2001

Self-Radiation Damage in Actinide Host Phases of Nuclear Waste Forms
journal, January 1984

Heavy-ion irradiation effects on structures and acid dissolution of pyrochlores
journal, February 2001

TEM study of alpha-damaged plutonium and americium dioxides
journal, March 2015

Effects of He Irradiation on Yttria-Stabilized Zirconia Ceramics
journal, December 2014

Helium bubble formation in nuclear glass by in-situ TEM ion implantation
journal, September 2014

Helium mobility in SON68 borosilicate nuclear glass: A nuclear reaction analysis approach
journal, November 2013

New ion beam materials laboratory for materials modification and irradiation effects research
journal, November 2014

Damage profile and ion distribution of slow heavy ions in compounds
journal, May 2009

Electronic stopping powers for heavy ions in SiC and SiO ₂
journal, January 2014

Helium behaviour in waste conditioning matrices during thermal annealing
journal, June 2006

He irradiation‐induced lattice distortion and surface blistering of Gd ₂ Zr ₂ O ₇ defect‐fluorite ceramics
journal, January 2020

Designing functionality in perovskite thin films using ion implantation techniques: Assessment and insights from first-principles calculations
journal, September 2017