He⁺ irradiation induced cracking and exfoliating on the surface of Ti₃AlC₂

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• 作者：H.H. Shen^a ; ^b ; L. Ao^c ; F.Z. Li^a ; S.M. Peng^a ; H.B. Zhang^a ; ^{hbzhang@caep.cn} ; K. Sun^b ; X.T. Zu^c ; ^{xtzu@uestc.edu.cn}
• 关键词：MAX ; Ti3AlC2 ; Helium irradiation ; Orientated cracks ; Surface exfoliating
• 刊名：Journal of Nuclear Materials
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：485
• 期：Complete
• 页码：262-272
• 全文大小：3640 K
• 卷排序：485

文摘

Effects of He irradiation on Ti3AlC2 were studied at various temperature and dose. The orientated cracks and surface exfoliation were observed after He irradiation. The formation of crack is strongly correlated to the shrinkage of a-LP of Ti3AlC2. The surface exfoliation is caused by He bubble blistering at the projected depth. The grain size and content of TiAl3 phase is good for MAX to relax internal stress.