Mixed (Sr1-xCax)(33)Bi24Al48O141 fullerenoids: the defect structure analysed by (S)TEM techniques

作     者：Lebedev, Oleg, I Bals, Sara Van Tendeloo, Gustaaf Snoeck, G. Etienne Retoux, Richard Boudin, Sophie Hervieu, Maryvonne 

作者机构：Univ Antwerp EMAT Groenenborgerlaan 171 B-2020 Antwerp Belgium CEMES CNRS Toulouse France Lab CRISMAT Caen France 

出 版 物：《INTERNATIONAL JOURNAL OF MATERIALS RESEARCH》 (Int. J. Mater. Res.)

年 卷 期：2022年第97卷第7期

页      面：978-984页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 

主　　题：Fullerenoid oxide Defect structure Electron microscopy Z-contrast 

摘      要：(Sr1-xCax)(33)Bi24+delta Al48O141+3 delta/2 fullerenoid solid solutions have been synthesized and the effect of partial substitution of Sr by Ca has been characterized by (scanning) transmission electron microscopy, applying different imaging methods. Most of the defects commonly observed in face centered cubic compounds, have also been observed in (Sr1-xCax)(33)Bi24+delta Al48O141+3 delta/2. Based on purely geometrical and topological models, structural presentations for the coherent twin boundaries and stacking faults have been constructed on the basis of complex spherical Al84O210 units. The results are compared to defects observed in the crystallite fullerite C-60.