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Characterizing the elasticity of hollow metal nanowires

机译:表征中空金属纳米线的弹性

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Wo have performed atomistic simulations on solid and hollow copper nanowires to quantify the elastic properties of hollow nanowires (nanoboxes). We analyse variations in the modulus, yield stress and strain for <100> and <110> nanoboxes by varying the amount of bulk material that is removed to create the nanoboxes. We find that, while <100> nanoboxes show no improvement in elastic properties as compared to solid <100> nanowires, <110> nanoboxes can show enhanced elastic properties as compared to solid <110> nanowires. The simulations reveal that the elastic properties of the nanoboxes are strongly dependent on the relative strength of the bulk material that has been removed, as well as the total surface area of the nanoboxes, and indicate the potential of ultralight, high-strength nanomaterials such as nanoboxes.
机译:Wo对实心和空心铜纳米线进行了原子模拟,以量化空心纳米线(纳米盒)的弹性。我们通过改变被移除以创建纳米盒的散装材料的数量来分析<100>和<110>纳米盒的模量,屈服应力和应变的变化。我们发现,虽然<100>纳米盒与实心<100>纳米线相比,弹性性能没有任何改善,但<110>纳米盒与实心<110>纳米线相比,弹性性能却有所提高。模拟表明,纳米盒的弹性特性在很大程度上取决于已去除的块状材料的相对强度以及纳米盒的总表面积,并表明了超轻,高强度纳米材料的潜力,例如纳米盒。

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