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Title: Ionizing vs collisional radiation damage in materials: Separated, competing, and synergistic effects in Ti3SiC2

Abstract

Comparison between intense radiation environments present in nuclear reactors and charged particle beams is necessary for evaluating next generation fission and fusion reactor materials. Yet, these two irradiation environments encompass different proportions of ionizing and collisional phenomena, so exploring the different energy loss pathways is needed for appropriate analysis. Using the candidate Mn+1AXn phase, Ti3SiC2, as a test case, this work separates the effects of electronic and nuclear energy loss during ion irradiation, through a combination of 4 MeV Au, 17 MeV Pt, and 14 MeV Cl ion irradiations to examine the effects independently and systematically recombine them. Nuclear energy loss (elastic collisions) is found to be primarily responsible for the formation of a face-centered-cubic phase with anti-site defects, while intense electronic energy loss (ionization) exacerbates the effect and increases lattice strain. Moreover, these dissipation pathways are found to be competing or synergistic depending on their ionization and collisional ratio.

Authors:
 [1];  [2];  [1]; ORCiD logo [3];  [4]; ORCiD logo [4]; ORCiD logo [4]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Univ. of Liverpool (United Kingdom)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1515651
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Acta Materialia
Additional Journal Information:
Journal Volume: 173; Journal Issue: C; Journal ID: ISSN 1359-6454
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Ion irradiation damage; Ti3SiC2 MAX phase; X-ray diffraction (XRD); Transmission electron microscopy (TEM); Electronic and nuclear energy loss synergy

Citation Formats

Hanson, William A., Patel, Maulik K., Crespillo, Miguel L., Zhang, Fuxiang, Zinkle, Steven J., Zhang, Yanwen, and Weber, William J. Ionizing vs collisional radiation damage in materials: Separated, competing, and synergistic effects in Ti3SiC2. United States: N. p., 2019. Web. doi:10.1016/j.actamat.2019.05.015.
Hanson, William A., Patel, Maulik K., Crespillo, Miguel L., Zhang, Fuxiang, Zinkle, Steven J., Zhang, Yanwen, & Weber, William J. Ionizing vs collisional radiation damage in materials: Separated, competing, and synergistic effects in Ti3SiC2. United States. https://doi.org/10.1016/j.actamat.2019.05.015
Hanson, William A., Patel, Maulik K., Crespillo, Miguel L., Zhang, Fuxiang, Zinkle, Steven J., Zhang, Yanwen, and Weber, William J. Fri . "Ionizing vs collisional radiation damage in materials: Separated, competing, and synergistic effects in Ti3SiC2". United States. https://doi.org/10.1016/j.actamat.2019.05.015. https://www.osti.gov/servlets/purl/1515651.
@article{osti_1515651,
title = {Ionizing vs collisional radiation damage in materials: Separated, competing, and synergistic effects in Ti3SiC2},
author = {Hanson, William A. and Patel, Maulik K. and Crespillo, Miguel L. and Zhang, Fuxiang and Zinkle, Steven J. and Zhang, Yanwen and Weber, William J.},
abstractNote = {Comparison between intense radiation environments present in nuclear reactors and charged particle beams is necessary for evaluating next generation fission and fusion reactor materials. Yet, these two irradiation environments encompass different proportions of ionizing and collisional phenomena, so exploring the different energy loss pathways is needed for appropriate analysis. Using the candidate Mn+1AXn phase, Ti3SiC2, as a test case, this work separates the effects of electronic and nuclear energy loss during ion irradiation, through a combination of 4 MeV Au, 17 MeV Pt, and 14 MeV Cl ion irradiations to examine the effects independently and systematically recombine them. Nuclear energy loss (elastic collisions) is found to be primarily responsible for the formation of a face-centered-cubic phase with anti-site defects, while intense electronic energy loss (ionization) exacerbates the effect and increases lattice strain. Moreover, these dissipation pathways are found to be competing or synergistic depending on their ionization and collisional ratio.},
doi = {10.1016/j.actamat.2019.05.015},
journal = {Acta Materialia},
number = C,
volume = 173,
place = {United States},
year = {Fri May 10 00:00:00 EDT 2019},
month = {Fri May 10 00:00:00 EDT 2019}
}

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