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首页> 外文会议>International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2004); 20040822-26; Sendai(JP) >Patterning of Self-Oriented Nanocrystals in an Amorphous Alloy under Focused Ion Beam Irradiation
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Patterning of Self-Oriented Nanocrystals in an Amorphous Alloy under Focused Ion Beam Irradiation

机译：聚焦离子束辐照下非晶态合金中自取向纳米晶体的图形化

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摘要

Orientated nanocrystals (NCs) and selective amorphousization of NCs are essential for improving the function of nanocrystalline materials. In our previous studies, oriented nickel NCs have been successfully formed by focused ion beam (FIB) irradiation of a Ni-P amorphous alloy. These studies have revealed that changing the irradiation angle enables precipitation control of oriented NCs. Formation of NCs has usually been completed from a direction parallel to the surface plane of the Ni-P amorphous alloy (0-degrees irradiation). In contrast, FIB irradiation from a direction normal to the surface plane of the Ni-P amorphous alloy has not formed NCs (90-degrees irradiation). These results suggest that NCs can be erased by changing the angle of FIB irradiation. In this investigation, patterning of oriented NCs in a Ni-P amorphous alloy has been attempted by changing the FIB irradiation angle. As a result of transmission electron micrograph (TEM) observation, both nanocrystalline phase and amorphous phase changes due to irradiation angle were observed. This indicates that NCs were erased by 90-degrees irradiation. This result suggests that FIB irradiation is promising for nano-meter scale patterning of NCs.
机译：定向纳米晶体（NCs）和NC的选择性非晶化对于改善纳米晶体材料的功能至关重要。在我们以前的研究中，已经通过聚焦离子束（FIB）辐射Ni-P非晶态合金成功地形成了定向镍NCs。这些研究表明，改变照射角度可以控制定向NC的沉淀。 NC的形成通常是从与Ni-P非晶态合金的表面平行的方向完成的（0度辐照）。相反，从垂直于Ni-P非晶合金表面的方向进行的FIB照射未形成NC（90度照射）。这些结果表明，可以通过更改FIB照射角度来擦除NC。在这项研究中，已经尝试通过改变FIB照射角度在Ni-P非晶态合金中对取向NC进行构图。透射电子显微镜（TEM）观察的结果是，观察到由于照射角度引起的纳米晶相和非晶相的变化。这表明NC被90度辐射擦除。这一结果表明FIB辐射有望用于NC的纳米级图案化。

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