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本文系统地研究了二元非晶态合金的稳定性。首先采用磁控共溅的方法制备了Al—Fe,Al—Ni 和 Sm—Co等13个二元系统的非晶态合金薄膜.磁控共溅可以在一次镀膜中,获得跨越二元相图中全成分范围的合金薄膜.在液氮冷却基片的条件下进行磁控共溅,可以在较宽的成分范围内获得非晶态合金.然后采用Rutherford背散射、能量弥散X射线谱.带加温样品台的透射电镜和俄歇电子能谱对薄膜进行了成分、结构、形貌、转变温度及杂质含量的分析,由此得到了13个二元系统中非晶态的稳定性结果.最后综合本文13个二元系统和前人作过的几十种二元非晶态合金稳定性的结果、提出了适于各种二元系统的非晶态合金稳定性的理论模型.
This paper systematically studied the stability of binary amorphous alloys. Firstly, 13 binary systems of amorphous alloys, such as Al-Fe, Al-Ni and Sm-Co, were prepared by magnetron co-sputtering method. In the full composition range of the alloy film, the substrate was cooled by liquid nitrogen under magnetic co-sputtering can be obtained within a wide range of composition of the amorphous alloy, followed by Rutherford backscattering, energy dispersive X-ray spectrometry. The composition, structure, morphology, transition temperature and impurity content of the thin film were analyzed by transmission electron microscopy and Auger electron spectroscopy. The stability of the amorphous system in 13 binary systems was obtained. Finally, based on the stability of dozens of binary amorphous alloys made by 13 binary systems and predecessors, a theoretical model of the stability of amorphous alloys for various binary systems is proposed.