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Cited by 48 publications
(59 citation statements)
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References 30 publications
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“…Moreover, He atoms have a lower energy barrier to move parallel to the Al plane and thus the rate growth of the He bubbles is higher along the Al plane, causing the formation of platelet-like bubbles and the platelet parallel to the Al plane. This is in excellent agreement with the observations recently reported, 11 by which it can be indicated that platelet-like bubbles are formed by He implantation and the orientation of the platelets depends only on the crystallographic orientation instead of the irradiation surface. As to the conventional spherical He bubbles, our studies indicate they are more likely to be nucleated from the C vacancies and their growth rate before the formation of a sizeable void is slower due to high energy barrier along c-axis.…”
supporting
confidence: 93%
See 2 more Smart Citations
“…Moreover, He atoms have a lower energy barrier to move parallel to the Al plane and thus the rate growth of the He bubbles is higher along the Al plane, causing the formation of platelet-like bubbles and the platelet parallel to the Al plane. This is in excellent agreement with the observations recently reported, 11 by which it can be indicated that platelet-like bubbles are formed by He implantation and the orientation of the platelets depends only on the crystallographic orientation instead of the irradiation surface. As to the conventional spherical He bubbles, our studies indicate they are more likely to be nucleated from the C vacancies and their growth rate before the formation of a sizeable void is slower due to high energy barrier along c-axis.…”
supporting
confidence: 93%
“…9,10 This is drastically different from the experimental observations of Ti 3 AlC 2 after He irradiation, where platelet or string-like He bubbles are also formed. 8,11 To reveal how He bubbles evolve in Ti 3 AlC 2 and understand the influence of He bubbles on its structural evolution, additional calculations of the Ti 3 AlC 2 structures with both He atoms and vacancies are carried out in this work. As mentioned before, Al and C vacancies can be readily formed in Ti 3 AlC 2 .…”
Section: Resultsmentioning
confidence: 99%
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“…Ti 3 SiC 2 and Ti 3 AlC 2 ) have been considered as better candidates for nuclear structural materials [6][7][8][9] and some experiments have demonstrated that Ti 3 AlC 2 exhibits high tolerance to the He damage. [10][11][12] For example, Wang et al reported that Ti 3 AlC 2 irradiated by 50 keV He ions with doses up to 1 Â 10 18 cm À2 at room temperature displayed severe structural disorder but no evident amorphization. 11 Patel et al demonstrated that the Al layer of Ti 3 AlC 2 at 500 C irradiated by 200 keV He ions with doses of 2 Â 10 17 cm À2 was disordered, whereas the Ti 3 C 2 layers remained intact aer irradiation.…”
Section: Introductionmentioning
confidence: 99%
“…8,[13][14][15] It should be noted that previous experimental observations showed that the He atoms implanted in MAX phase materials usually form clusters with sizes of 0.6-1.0 nm. 10,11 Recently, we investigated the migration and aggregation of He atoms homogeneously generated in Ti 3 SiC 2 via rst-principles calculations 16 and showed that the He atoms would migrate to the Si layer and nally form clusters. Clearly, it is very important for the design of structural materials to study the effects of He clusters, instead of the single He atom, on the mechanical properties of Ti 3 SiC 2 as well as other MAX phase materials.…”
Section: Introductionmentioning
confidence: 99%