Abstract
In situ ion irradiation in a transmission electron microscope was used to investigate the effects of temperature on radiation-induced bubble lattice formation in Cu by low energy (12 keV) helium ions. Bubble lattices were observed to form between − 100 and 100 °C, but at 200 °C lattice formation was impeded by continued growth and agglomeration of bubbles. Both nucleation of bubbles, and to a lesser extent bubble lattice formation, are observed at lower fluences as temperature increases, which we suggest is due to increased point defect mobility. Previous work on point defect concentrations in irradiated copper is considered when interpreting these results.
| Original language | English |
|---|---|
| Pages (from-to) | 108-111 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 131 |
| Early online date | 22 Jan 2017 |
| DOIs | |
| Publication status | Published - 1 Apr 2017 |
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The effect of temperature on bubble lattice formation in copper under in situ He ion irradiation. / Robinson, Aidan M.; Edmondson, Philip D.; English, Colin; Lozano-Perez, Sergio; Greaves, Graeme; Hinks, Jonathan A.; Donnelly, Stephen E.; Grovenor, Chris R M.
In: Scripta Materialia, Vol. 131, 01.04.2017, p. 108-111.Research output: Contribution to journal › Article
TY - JOUR
T1 - The effect of temperature on bubble lattice formation in copper under in situ He ion irradiation
AU - Robinson, Aidan M.
AU - Edmondson, Philip D.
AU - English, Colin
AU - Lozano-Perez, Sergio
AU - Greaves, Graeme
AU - Hinks, Jonathan A.
AU - Donnelly, Stephen E.
AU - Grovenor, Chris R M
PY - 2017/4/1
Y1 - 2017/4/1
N2 - In situ ion irradiation in a transmission electron microscope was used to investigate the effects of temperature on radiation-induced bubble lattice formation in Cu by low energy (12 keV) helium ions. Bubble lattices were observed to form between − 100 and 100 °C, but at 200 °C lattice formation was impeded by continued growth and agglomeration of bubbles. Both nucleation of bubbles, and to a lesser extent bubble lattice formation, are observed at lower fluences as temperature increases, which we suggest is due to increased point defect mobility. Previous work on point defect concentrations in irradiated copper is considered when interpreting these results.
AB - In situ ion irradiation in a transmission electron microscope was used to investigate the effects of temperature on radiation-induced bubble lattice formation in Cu by low energy (12 keV) helium ions. Bubble lattices were observed to form between − 100 and 100 °C, but at 200 °C lattice formation was impeded by continued growth and agglomeration of bubbles. Both nucleation of bubbles, and to a lesser extent bubble lattice formation, are observed at lower fluences as temperature increases, which we suggest is due to increased point defect mobility. Previous work on point defect concentrations in irradiated copper is considered when interpreting these results.
KW - Bubble lattice
KW - Copper
KW - In situ ion irradiation
KW - Self-interstitial atoms
UR - http://www.scopus.com/inward/record.url?scp=85009918599&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2016.12.031
DO - 10.1016/j.scriptamat.2016.12.031
M3 - Article
VL - 131
SP - 108
EP - 111
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
ER -