Nanomechanical characterization of Pd based amorphous nanowire

我们研究了非晶态合金的塑性变形过程，试图从原子尺度上揭示剪切断裂的机制。该计划是利用透射电子显微镜对非晶态纳米线在张应力作用下的结构变化进行原子尺度观察。要做到这一点，我们确实需要在双光束扫描电子显微镜/离子注入成像机中通过切割和沉积来制备纳米线。然而，2012年3月11日的日本东部大地震造成了透射电子显微镜和扫描电子显微镜/注射成型机的损坏，推迟了纳米力学测试的实验日程。因此，我们转向大规模生产非晶态合金纳米线，并成功地发明了从Pd、Zr、Fe、Co等多种非晶态合金中制备纳米线的方法。

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.