Nanomechanical characterization of Pd based amorphous nanowire

本文研究了非晶合金的塑性变形过程，试图从原子尺度上揭示非晶合金的剪切断裂机制。该计划是在拉伸应力下的非晶纳米线的结构变化的透射电子显微镜（TEM）的原子尺度观察。为了实现这一点，我们需要在双光束SEM/FIB设备中通过切割和沉积来制备纳米线。然而，2012年3月11日的东日本大地震导致TEM和SEM/FIB设备受损，推迟了纳米力学测试的实验计划。因此，我们已经转向专注于非晶合金纳米线的大规模生产，并且已经成功地发明了从各种非晶合金（例如Pd、Zr、Fe和Co基）生产纳米线的方法。

We investigate the plastic deformation processes of amorphous alloys and tried to reveal the mechanism of the shear fracture at atomic scale. The plan was the atomic scale observation of structural changes in amorphous nanowires under tensile stress with transmission electron microscopy (TEM). To accomplish this, we do need the preparation of the nanowire by cutting and depositing in the dual beam SEM/FIB machine.However, the Great East Japan Earthquake on March 11, 2012 caused the damage to both TEM and SEM/FIM machines and delayed the experimental schedule of the nanomechanical tests. Therefore, we have switched over to focus the mass production of the amorphous alloy nanowires and have succeeded to invent the way to produce nanowires from the variety of amorphous alloys such as Pd, Zr, Fe, and Co based.