Oxidation of metallic glasses has been shown to be different from crystalline alloys due to the disordered atomic structures and far-from-equilibrium state, and quick characterization is required to reveal their early stage oxidation. In this study, we investigated the oxidation behavior of a Zr₄₆Cu₄₆Al₇Gd₁ bulk metallic glass by measuring the changes of optical constants via spectroscopic ellipsometry. Characterizations with X-ray diffraction, scanning electron microscopy, and thermogravimetric analyzer confirmed that the changes of pseudo-optical constants reflected not only the onset temperature at which the alloys underwent obvious oxidation, but also the subtle oxidation which was tedious to characterize. Our study suggests a more efficient and accurate approach to understand the oxidation of metallic glasses with temperature, time and compositions.

由于无序原子结构和远离平衡状态，金属玻璃的氧化已被证明与结晶合金不同，因此需要快速表征才能揭示其早期氧化。在这项研究中，我们调查了Zr的氧化行为₄₆的Cu _{4 6}铝₇的Gd _1个通过测量光学常数的变化块状金属玻璃通过光谱椭圆偏振法。通过X射线衍射，扫描电子显微镜和热重分析仪进行表征，证实了准光学常数的变化不仅反映了合金明显氧化的起始温度，而且反映了难以表征的微妙氧化。我们的研究提出了一种更有效和准确的方法来理解金属玻璃随温度，时间和成分的氧化。