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利用选区电子衍射和会聚束衍射研究了喷射沉积Ａｌ－Ｆｅ－Ｖ－Ｓｉ合金中一种六方相的晶体结构，其点阵常数为： ａ—２．５２ ｃｍ， ｃ＝１．２６ ｎｍ，空间群为 Ｐ６／ｍｍｍ，该六方相与立方相具有固定取向关系，且 ＥＤＳ分析表明，两相成分相 近．系统对比分析 ＳＡＥＤ花样发现，六方相的某些带轴衍射谱具有立方相的二十面体结构基元表现出的衍射特征，表明六方相也 是一种准晶近似晶体相，其结构构架可能由（Ｆｅ＋Ｖ）和（ＡＩ＋Ｓｉ）双层二十面体结构基元以 ３种不同取向堆砌而成
The crystal structure of a hexagonal phase in the sputter-deposited Al-Fe-V-Si alloy was studied by using the selected electron diffraction and convergent beam diffraction. The lattice constants are a-2.52 cm and c = 1.26 nm. The population is P6 / mmm, and the hexagonal and cubic phases have a fixed orientation relationship, and EDS analysis shows that the two phases have similar compositions. The systematic comparative analysis of SAED patterns shows that the diffraction characteristics of the icosahedron structural elements with cubic phases of some of the hexagonal phase diffraction spectra show that the hexagonal phase is also a quasicrystalline approximation crystal phase and its structural framework may be represented by Fe + V) and (AI + Si) double-layer icosahedral structure elements stacked in three different orientations