Abstract We report a thermodynamically stable quaternary Al59Cr23Fe8Si10 decagonal quasicrystal (DQC), whose stability was verified by annealing at both high and low temperature for 168 or 360 h. The atomic scale structural features of the quasiperiodic plane were revealed based on high-angle annular dark-field scanning transmission electron microscopy images and the reasons for the stability of the Al59Cr23Fe8Si10 DQC are briefly discussed based on the structural characteristics. We argue that the 2 nm decagonal clusters with broken tenfold symmetry and their random tiling in the quasiperiodic plane of the Al59Cr23Fe8Si10 DQC enhance the stability.

中文翻译：

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稳定四元Al59Cr23Fe8Si10十方准晶

摘要 我们报道了一种热力学稳定的四元 Al59Cr23Fe8Si10 十方准晶 (DQC)，其稳定性通过高温和低温退火 168 或 360 小时得到验证。基于高角度环形暗场扫描透射电子显微镜图像揭示了准周期平面的原子尺度结构特征，并基于结构特征简要讨论了Al59Cr23Fe8Si10 DQC稳定性的原因。我们认为，在 Al59Cr23Fe8Si10 DQC 的准周期平面中，具有破坏十倍对称性的 2 nm 十边形团簇及其随机平铺增强了稳定性。