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采用Ｘ射线衍射技术研究了Ａｌ＿０．９Ｆｅ＿０．１和Ａｌ＿０．９Ｆｅ＿０．０５Ｃｅ＿０．０５合金的液态结构及Ａｌ＿０．９Ｆｅ＿０．０５Ｃｅ＿０．０５合金的非晶结构，并采用ＤＳＣ热分析研究了非晶合金的晶化行为．发现液态和非晶态合金的结构因子曲线上都存在明显的预峰，所对应的化学短程有序结构随温度降低，尺寸不断增大，但其结构单元的尺寸保持不变．Ｃｅ的加入使液态合金中化学短程有序及其结构单元的尺寸增大，并有利于原子间交互作用增强，从而提高非晶形成能力．预峰所对应的化学短程有序结构单元是以Ｆｅ原子为中心的二十面体准晶结构，这种结构在液态已形成，并保留在非晶中．
The liquid crystal structure of Al_0.9Fe_0.1 and Al_0.9Fe_0.05Ce_0.05 alloy and the amorphous structure of Al_0.9Fe_0.05Ce_0.05 alloy were studied by X-ray diffraction. The crystal of amorphous alloy was studied by DSC thermal analysis Behavior. It is found that there are obvious pre-peaks on the structure factor curves of the liquid and amorphous alloys. The corresponding chemical short-range ordered structures decrease with temperature and increase in size, but the size of the structural unit remains the same. The addition of Ce increases the chemical short-range order and the size of the structural unit in the liquid alloy, and promotes the enhancement of the interaction between the atoms to improve the amorphous formation ability. The chemical short-range ordered structure unit corresponding to the pre-peak is an icosahedral quasicrystal structure centered on the Fe atom. This structure has been formed in the liquid state and remains in the amorphous state.