کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5454281 | 1514161 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
He+ irradiation induced cracking and exfoliating on the surface of Ti3AlC2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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چکیده انگلیسی
We report a systematic study of the effects of a 400 keV helium ion beam irradiation on the surface morphology and crystal structure of Ti3AlC2 by combined scanning electron microscopy, grazing incidence X-ray diffraction and transmission electron microscopy. Helium irradiation experiments were performed at both room temperature and 500 °C, respectively, with fluence up to 2.0 Ã 1017 He+/cm2. After irradiation, intragranular orientated cracks grew along the (10 1¯ 0)Ti3AlC2 plane and the surface has started to exfoliate. The formation of the cracks is mainly attributed to the reduction of the lattice parameter along the a direction induced by ion irradiation, and the crack growth is affected by the grain size and the content of impurity phase TiAl3. The surface exfoliation is due to the blistering of He bubbles at the projected depth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 485, March 2017, Pages 262-272
Journal: Journal of Nuclear Materials - Volume 485, March 2017, Pages 262-272
نویسندگان
H.H. Shen, L. Ao, F.Z. Li, S.M. Peng, H.B. Zhang, K. Sun, X.T. Zu,