金属玻璃中的不同缺陷其激活能ε_0不同,每种缺陷的频率因子B也可能有数量级上的差别。基于这种思想,提出了确定金属玻璃结构弛豫谱的方法。通过测量等速升温下的电阻变化,确定了五种Cu-Zr合金玻璃的结构弛豫谱。所得谱包含三个分立的激活能峰,它们各具不同的频率因子,频率因子的值影响激活能峰的形状、范围、位置和连续性。Zr含量显著影响Cu-Zr玻璃的结构弛豫谱,讨论了其变化的规律性。
A proposed method for determining the structure relaxation spectra of five metallic glasses of Cu-Zr system has been carried out by measuring the electric resistance at constant heating rate. Three separate peaks of the activation energy with varied frequency factors were shown on the spectrum obtained, The frequency factor influences the shape, range, location and continuity of the peak. The Zr content in the Cu-Zr metallic glasses may affect considerably each own structure relaxation spectrum. Their variaty behaviour has also been discussed.
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