Thermal and Radiation Stability in Nanocrystalline Cu

Nanocrystalline metals have presented intriguing possibilities for use in radiation environments due to their high grain boundary volume, serving as enhanced irradiation-induced defect sinks. Their promise has been lessened due to the propensity for nanocrystalline metals to suffer deleterious grain...

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Main Authors: Marie Thomas, Heather Salvador, Trevor Clark, Eric Lang, Khalid Hattar, Suveen Mathaudhu
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/13/7/1211
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author Marie Thomas
Heather Salvador
Trevor Clark
Eric Lang
Khalid Hattar
Suveen Mathaudhu
author_facet Marie Thomas
Heather Salvador
Trevor Clark
Eric Lang
Khalid Hattar
Suveen Mathaudhu
author_sort Marie Thomas
collection DOAJ
description Nanocrystalline metals have presented intriguing possibilities for use in radiation environments due to their high grain boundary volume, serving as enhanced irradiation-induced defect sinks. Their promise has been lessened due to the propensity for nanocrystalline metals to suffer deleterious grain growth from combinations of irradiation and/or elevated homologous temperature. While approaches for stabilizing such materials against grain growth are the subject of current research, there is still a lack of central knowledge on the irradiation–grain boundary interactions in pure metals despite many studies on the same. Due to the breadth of available reports, we have critically reviewed studies on irradiation and thermal stability in pure, nanocrystalline copper (Cu) as a model FCC material, and on a few dilute Cu-based alloys. Our study has shown that, viewed collectively, there are large differences in interpretation of irradiation–grain boundary interactions, primarily due to a wide range of irradiation environments and variability in materials processing. We discuss the sources of these differences and analyses herein. Then, with the goal of gaining a more overarching mechanistic understanding of grain size stability in pure materials under irradiation, we provide several key recommendations for making meaningful evaluations across materials with different processing and under variable irradiation conditions.
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spelling doaj.art-481dccdc005846a2b45fe08683d8b9032023-11-17T17:17:18ZengMDPI AGNanomaterials2079-49912023-03-01137121110.3390/nano13071211Thermal and Radiation Stability in Nanocrystalline CuMarie Thomas0Heather Salvador1Trevor Clark2Eric Lang3Khalid Hattar4Suveen Mathaudhu5Metallurgical and Materials Engineering Department, Colorado School of Mines, Golden, CO 80401, USAMechanical Engineering Department, University of California, Riverside, CA 92521, USAMaterials Science and Engineering Program, University of California, Riverside, CA 92521, USACenter for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USACenter for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USAMetallurgical and Materials Engineering Department, Colorado School of Mines, Golden, CO 80401, USANanocrystalline metals have presented intriguing possibilities for use in radiation environments due to their high grain boundary volume, serving as enhanced irradiation-induced defect sinks. Their promise has been lessened due to the propensity for nanocrystalline metals to suffer deleterious grain growth from combinations of irradiation and/or elevated homologous temperature. While approaches for stabilizing such materials against grain growth are the subject of current research, there is still a lack of central knowledge on the irradiation–grain boundary interactions in pure metals despite many studies on the same. Due to the breadth of available reports, we have critically reviewed studies on irradiation and thermal stability in pure, nanocrystalline copper (Cu) as a model FCC material, and on a few dilute Cu-based alloys. Our study has shown that, viewed collectively, there are large differences in interpretation of irradiation–grain boundary interactions, primarily due to a wide range of irradiation environments and variability in materials processing. We discuss the sources of these differences and analyses herein. Then, with the goal of gaining a more overarching mechanistic understanding of grain size stability in pure materials under irradiation, we provide several key recommendations for making meaningful evaluations across materials with different processing and under variable irradiation conditions.https://www.mdpi.com/2079-4991/13/7/1211copperirradiationnanocrystallinestability
spellingShingle Marie Thomas
Heather Salvador
Trevor Clark
Eric Lang
Khalid Hattar
Suveen Mathaudhu
Thermal and Radiation Stability in Nanocrystalline Cu
Nanomaterials
copper
irradiation
nanocrystalline
stability
title Thermal and Radiation Stability in Nanocrystalline Cu
title_full Thermal and Radiation Stability in Nanocrystalline Cu
title_fullStr Thermal and Radiation Stability in Nanocrystalline Cu
title_full_unstemmed Thermal and Radiation Stability in Nanocrystalline Cu
title_short Thermal and Radiation Stability in Nanocrystalline Cu
title_sort thermal and radiation stability in nanocrystalline cu
topic copper
irradiation
nanocrystalline
stability
url https://www.mdpi.com/2079-4991/13/7/1211
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