TY - JOUR
T1 - Minimal variation of defect structure due to the order of room temperature hydrogen isotope implantation and self-ion irradiation in nickel
AU - Muntifering, Brittany
AU - Qu, Jianmin
AU - Hattar, Khalid
N1 - Publisher Copyright:
© 2016 Materials Research Society.
PY - 2016
Y1 - 2016
N2 - The formation and stability of radiation-induced defects in structural materials in reactor environments significantly effects their integrity and performance. Hydrogen, which may be present in significant quantities in future reactors, may play an important role in defect evolution. To characterize the effect of hydrogen on cascade damage evolution, in-situ TEM self-ion irradiation and deuterium implantation was performed, both sequentially and concurrently, on nickel. This paper presents preliminary results characterizing dislocation loop formation and evolution during room temperature deuterium implantation and self-ion irradiation and the consequence of the sequence of irradiation. Hydrogen isotope implantation at room temperature appears to have little or no effect on the final dislocation loop structures that result from self-ion irradiation, regardless of the sequence of irradiation. Tilting experiments emphasize the importance of precise two-beam conditions for characterizing defect size and structure.
AB - The formation and stability of radiation-induced defects in structural materials in reactor environments significantly effects their integrity and performance. Hydrogen, which may be present in significant quantities in future reactors, may play an important role in defect evolution. To characterize the effect of hydrogen on cascade damage evolution, in-situ TEM self-ion irradiation and deuterium implantation was performed, both sequentially and concurrently, on nickel. This paper presents preliminary results characterizing dislocation loop formation and evolution during room temperature deuterium implantation and self-ion irradiation and the consequence of the sequence of irradiation. Hydrogen isotope implantation at room temperature appears to have little or no effect on the final dislocation loop structures that result from self-ion irradiation, regardless of the sequence of irradiation. Tilting experiments emphasize the importance of precise two-beam conditions for characterizing defect size and structure.
KW - ion-implantation
KW - ion-solid interactions
KW - nuclear materials
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U2 - 10.1557/adv.2016.396
DO - 10.1557/adv.2016.396
M3 - Article
AN - SCOPUS:85041636020
VL - 1
SP - 2887
EP - 2892
JO - MRS Advances
JF - MRS Advances
IS - 42
ER -