کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7963179 | 1514139 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formation of dislocations in LiF irradiated with 3He and 4He ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Formation of dislocations in LiF irradiated with 3He and 4He ions Formation of dislocations in LiF irradiated with 3He and 4He ions](/preview/png/7963179.png)
چکیده انگلیسی
Influence of the irradiation with 13.5â¯MeV 3He and 5â¯MeV 4He ions on the micro-structure and mechanical properties of LiF single crystals was studied. The depth profiles of nanoindentation, dislocation mobility, selective chemical etching and photoluminescence served for the characterization of damage. Strong ion-induced increase of hardness and decrease in dislocation mobility at the stage of track overlapping due to accumulation of dislocations and other extended defects was observed. At high fluences (1015 ions/cm2) the hardness saturates at about 3.5â¯GPa (twofold increase in comparison to a virgin crystal) thus confirming high efficiency of light projectiles in modifications of structure and properties. The effects of ion-induced increase of hardness and decrease of dislocation mobility are observed also beyond the ion range and possible mechanisms of such damage are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 507, 15 August 2018, Pages 241-247
Journal: Journal of Nuclear Materials - Volume 507, 15 August 2018, Pages 241-247
نویسندگان
I. Manika, R. Zabels, J. Maniks, K. Schwartz, R. Grants, T. Krasta, A. Kuzmin,