Mechanical properties of titania-derived nanoribbons

被引：33

作者：

Humar, M.

Arcon, D.

Umek, P.

Skarabot, M.

Musevic, I.

Bregar, G.

机构：

[1] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[2] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 15期

关键词：

D O I：

10.1088/0957-4484/17/15/043

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical properties of TiO2-derived nanoribbons were investigated by using a three-point bending method. Thin nanoribbons (cross-section dimension similar to 30 nm) have an average Young's modulus of 260 +/- 55 GPa. For thicker nanoribbons, which are composed of several thinner nanostrips, the bending modulus rapidly decreases with increasing cross-section. In analogy with carbon nanotube ropes we argue that shear deformations become important and the shear modulus is G = 0.07-0.4 GPa. The present results together with our previous work suggest that TiO2-derived nanoribbons and nanotubes may undertake a dual function in polymer composites: they could reinforce the polymer matrix while at the same time they could provide a large active surface area.

引用

页码：3869 / 3872

页数：4

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