Radiation induced nanovoid shrinkage in Cu at room temperature: An in situ study

C. Fan; A. R.G. Sreekar; Z. Shang; Jin Li; M. Li; H. Wang; A. El-Azab; X. Zhang

doi:10.1016/j.scriptamat.2019.02.046

Radiation induced nanovoid shrinkage in Cu at room temperature: An in situ study

C. Fan, A. R.G. Sreekar, Z. Shang, Jin Li, M. Li, H. Wang, A. El-Azab, X. Zhang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

14 Citations (Scopus)

Abstract

Radiation induced void swelling is widely observed in a variety of metallic materials. Here, by using sputtering deposition technique, we have introduced faceted nanovoids into Cu films. In-situ Kr ion irradiation was subsequently performed at room temperature to investigate the evolution of nanovoids. Most nanovoids found to shrink gradually with increasing dose. Irradiation induced high-density vacancy clusters exist mostly in the form of stacking fault tetrahedrons. Phase field modeling reveales that void shrinkage arises from biased absorption of interstitials. These findings provide insights to the physical mechanisms of radiation response of nanovoids in metallic materials.

Original language	English
Pages (from-to)	112-116
Journal	Scripta Materialia
Volume	166
DOIs	https://doi.org/10.1016/j.scriptamat.2019.02.046
Publication status	Published - 1 Jun 2019
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

In situ radiation
Nanovoids
Phase-field modeling
Stacking fault tetrahedron
Void shrinkage

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title = "Radiation induced nanovoid shrinkage in Cu at room temperature: An in situ study",

abstract = "Radiation induced void swelling is widely observed in a variety of metallic materials. Here, by using sputtering deposition technique, we have introduced faceted nanovoids into Cu films. In-situ Kr ion irradiation was subsequently performed at room temperature to investigate the evolution of nanovoids. Most nanovoids found to shrink gradually with increasing dose. Irradiation induced high-density vacancy clusters exist mostly in the form of stacking fault tetrahedrons. Phase field modeling reveales that void shrinkage arises from biased absorption of interstitials. These findings provide insights to the physical mechanisms of radiation response of nanovoids in metallic materials.",

keywords = "In situ radiation, Nanovoids, Phase-field modeling, Stacking fault tetrahedron, Void shrinkage",

author = "C. Fan and Sreekar, {A. R.G.} and Z. Shang and Jin Li and M. Li and H. Wang and A. El-Azab and X. Zhang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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doi = "10.1016/j.scriptamat.2019.02.046",

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TY - JOUR

T1 - Radiation induced nanovoid shrinkage in Cu at room temperature

T2 - An in situ study

AU - Fan, C.

AU - Sreekar, A. R.G.

AU - Shang, Z.

AU - Li, Jin

AU - Li, M.

AU - Wang, H.

AU - El-Azab, A.

AU - Zhang, X.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Radiation induced void swelling is widely observed in a variety of metallic materials. Here, by using sputtering deposition technique, we have introduced faceted nanovoids into Cu films. In-situ Kr ion irradiation was subsequently performed at room temperature to investigate the evolution of nanovoids. Most nanovoids found to shrink gradually with increasing dose. Irradiation induced high-density vacancy clusters exist mostly in the form of stacking fault tetrahedrons. Phase field modeling reveales that void shrinkage arises from biased absorption of interstitials. These findings provide insights to the physical mechanisms of radiation response of nanovoids in metallic materials.

AB - Radiation induced void swelling is widely observed in a variety of metallic materials. Here, by using sputtering deposition technique, we have introduced faceted nanovoids into Cu films. In-situ Kr ion irradiation was subsequently performed at room temperature to investigate the evolution of nanovoids. Most nanovoids found to shrink gradually with increasing dose. Irradiation induced high-density vacancy clusters exist mostly in the form of stacking fault tetrahedrons. Phase field modeling reveales that void shrinkage arises from biased absorption of interstitials. These findings provide insights to the physical mechanisms of radiation response of nanovoids in metallic materials.

KW - In situ radiation

KW - Nanovoids

KW - Phase-field modeling

KW - Stacking fault tetrahedron

KW - Void shrinkage

UR - http://www.scopus.com/inward/record.url?scp=85063032095&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85063032095&origin=recordpage

U2 - 10.1016/j.scriptamat.2019.02.046

DO - 10.1016/j.scriptamat.2019.02.046

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 166

SP - 112

EP - 116

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Radiation induced nanovoid shrinkage in Cu at room temperature: An in situ study

Abstract

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Research Keywords

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