Microstructure and composition analysis of nanostructured materials using HREM and FEG-TEM
作者： D.X. Li , D.H. Ping , J.Y. Huang , Y.D. Yu , H.Q. Ye
DOI: 10.1016/S0968-4328(99)00140-7
关键词: Crystallography 、 Supersaturation 、 Perfect crystal 、 Amorphous solid 、 Alloy 、 Materials science 、 Microstructure 、 Solid solution 、 Crystallization 、 Chemical engineering 、 Grain boundary
摘要: Abstract The microstructure in nanostructured (NS) materials synthesized by different methods have been characterized electron microscopy methods. NS-Pd was prepared inert-gas condensation and situ compacting method (IGCC), NS-alloys amorphous crystallization (ACM) NS-Cu Cu 100− x Fe alloy mechanical alloying (MA) experimental results revealed that preparation techniques lead to microstructures. grain boundaries ordered disordered structures high density of defects were frequently detected NS-materials IGCC MA. For the produced ACM, however, GBs are similar those coarse-grained grains nearly perfect crystal structure. immiscible systems, a supersaturated Fe–Cu solid solution can be obtained MA, but it is difficult using IGCC.
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