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Local structure of metallic glasses as seen by mechanical hydrogen relaxation

机译:通过机械氢弛豫可以看到金属玻璃的局部结构

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摘要

As an application of hydrogen as a probe. the literature on the damping peak of hydrogen in about 30 amorphous alloys was examined with respect to the question of systematic structural differences between the different types of metallic glasses. A direct plot of measured peak temperatures, corrected to the same frequency. as a function of the peak height turned out to be most suitable for this purpose. Most of these data fall into a 40 K wide band. with no distinction between types like 'metal-metalloid'. metal-metal~. or 'bulk' glasses. This general result suggests, in particular. that the outstanding thermal stability of bulk metallic glasses does not come from a specific amorphous structure. Stronger deviations from the general behaviour, as observed very clearly for Pd-based glasses and tentatively also for phase-separating systems, still need a closer examination.
机译:作为氢的应用探针。关于不同类型的金属玻璃之间的系统结构差异的问题,研究了约30种非晶态合金中氢的阻尼峰的文献。测得的峰值温度的直接图,已校正为相同的频率。峰高的函数证明最适合于此目的。这些数据大多数属于40 K宽带。没有区分“金属-准金属”的类型。金属的〜或“散装”眼镜。该总体结果特别表明。大块金属玻璃的出色热稳定性并非来自特定的非晶结构。对于基于Pd的玻璃以及暂时地对于相分离系统观察到的与一般性能的较大偏差,仍需要仔细检查。

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