Effect of electron irradiation on different crystal planes of titanium aluminum carbide

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• 作者：Xiaochen Huang ; Yi Feng ; ^{fyhfut@163.com" class="auth_mail" title="E-mail the corresponding author} ; Gang Qian ; Yang Wang ; Xuebin Zhang
• 关键词：Ti3AlC2 ; Electron irradiation ; Crystal plane ; Radiation damage
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：42
• 期：13
• 页码：14984-14991
• 全文大小：6658 K

文摘

Ti₃AlC₂ is irradiated by electron-beams at the energy of 200 keV for different times. For the first time, the electron irradiation resistance of Ti₃AlC₂ of two crystal planes ((0001) and (11$\overline{2}$0)) is studied. It is found that the sputtering of atoms occurs in both morphologies of the two selected planes by performing high-resolution transmission electron microscopy (HRTEM). There’s no amorphous ring observed on their selected area electron diffraction (SAED) patterns. Some weakened diffraction spots on their SAED patterns are observed. Structure transformation from α to β phase is attributed to the weakened diffraction spots on (11$\overline{2}$0) plane by simulated electron diffraction patterns (EDPs), indicating the high irradiation resistance of Ti₃AlC₂.