Carbon nanotube alignment driven rapid actuations

被引：0

作者：

Lin, Yu-Hsien ^{[1
]}

Tsai, Hsin-Jung ^{[1
]}

Chang, Han-Chen ^{[1
]}

Lin, Wen-Yi ^{[1
]}

Fang, Wei-Leun ^{[2
]}

Hsu, Wen-Kuang ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

[2] Natl Tsing Hua Univ, Dept Power Mech Engn, Hsinchu 30013, Taiwan

来源：

NANOTECHNOLOGY | 2013年 / 24卷 / 46期

关键词：

COULOMB EXPLOSION; FIELD-EMISSION; ACTUATORS; SYSTEMS;

D O I：

10.1088/0957-4484/24/46/465501

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Suspended micro-beams made from aligned carbon nanotubes and parylene deflect reversibly in an ac field and the deflection rate is three orders of magnitude greater than those for existing devices. The direction of beam deflection is determined by the area moment of inertia and the actuation mechanism involves rapid accumulation of charges at tube surfaces, the creation of Coulomb repulsive forces between tubes, beam dilation and the formation of compressive stresses at beam ends. Tube alignment plays a crucial role in the first step as is verified by experimental data and calculation.

引用

页数：6

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