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金属玻璃Pd_(80)Si_(20)是被研究得较早、较多的金属玻璃之一,但仍需进一步研究。Masumoto等人将Pd_(80)Si_(20)的亚稳相分成所谓亚稳Ⅰ相和亚稳Ⅱ相。为了研究晶化过程及亚稳相的结构、特别是所谓亚稳Ⅱ相的结构,我们在电镜中原位加热和观察了Pd_(80)Si_(20)的晶化过程,并用电子计算机分析了亚稳相的结构。随加热温度的升高,金属玻璃Pd_(80)Si_(20)的结构不断发生弛豫。当温度升至345℃后,试样便开始晶化,形成下列各相:
The metallic glass Pd_ (80) Si_ (20) is one of the earlier and more studied metallic glasses, but further research is needed. Masumoto et al. Classify the metastable phase of Pd_ (80) Si_ (20) into so-called metastable phase I and metastable phase II. In order to study the crystallization process and the metastable phase structure, especially the so-called metastable phase Ⅱ structure, we heated and observed the in-situ heating process of the Pd 80 Si 20 crystal by electron microscopy. Steady-phase structure. With the increase of heating temperature, the structure of Pd_ (80) Si_ (20) metal glass continuously relaxes. When the temperature rose to 345 ° C, the sample started to crystallize, forming the following phases: