Fault-tolerant dielectric elastomer actuators using single-walled carbon nanotube electrodes

被引：221

作者：

Yuan, Wei ^{[1
]}

Hu, Liangbing ^{[2
]}

Yu, Zhibin ^{[1
]}

Lam, Tuling ^{[1
]}

Biggs, James ^{[3
]}

Ha, Soon M. ^{[1
]}

Xi, Dongjuan ^{[1
]}

Chen, Bin ^{[4
]}

Senesky, Matthew K. ^{[3
]}

Gruner, George ^{[2
]}

Pei, Qibing ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[3] Artificial Muscle Inc, Menlo Pk, CA 94303 USA

[4] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 03期

关键词：

D O I：

10.1002/adma.200701018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fault-tolerant actuators. Single-waited carbon nanotubes were studied as new compliant electrodes for dielectric elastomers. The spray-coated SWNT electrodes drive electromechanical strains greater than 200 %. When a fault is present due to pin puncture or internal defect in the elastomer films, dielectric breakdown causes localized self-clearing of the SWNT electrodes and isolation of the fault. The increased fault tolerance may enhance the actuation reliability of dielectric elastomers actuators.

引用

页码：621 / +

页数：6

共 27 条

[1] Nanotubes in a flash - Ignition and reconstruction [J].

Ajayan, PM ;

Terrones, M ;

de la Guardia, A ;

Huc, V ;

Grobert, N ;

Wei, BQ ;

Lezec, H ;

Ramanath, G ;

Ebbesen, TW .

SCIENCE, 2002, 296 (5568) :705-705

[2] Electronic properties of single-walled carbon nanotube networks [J].

Bekyarova, E ;

Itkis, ME ;

Cabrera, N ;

Zhao, B ;

Yu, AP ;

Gao, JB ;

Haddon, RC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (16) :5990-5995

[3] Mechanical properties of Dielectric Elastomer Actuators with smart metallic compliant electrodes [J].

Benslimane, M ;

Gravesen, P .

SMART STRUCTURES AND MATERIALS 2002: ELECTROACTIVE POLYMER ACTUATORS AND DEVICES (EAPAD), 2002, 4695 :150-157

[4] Degradation and failure of carbon nanotube field emitters [J].

Bonard, JM ;

Klinke, C ;

Dean, KA ;

Coll, BF .

PHYSICAL REVIEW B, 2003, 67 (11) :10

[5] Field emission from single-wall carbon nanotube films [J].

Bonard, JM ;

Salvetat, JP ;

Stockli, T ;

de Heer, WA ;

Forro, L ;

Chatelain, A .

APPLIED PHYSICS LETTERS, 1998, 73 (07) :918-920

[6] Transparent flexible organic thin-film transistors that use printed single-walled carbon nanotube electrodes [J].

Cao, Q ;

Zhu, ZT ;

Lemaitre, MG ;

Xia, MG ;

Shim, M ;

Rogers, JA .

APPLIED PHYSICS LETTERS, 2006, 88 (11)

[7] Electromechanical characterisation of dielectric elastomer planar actuators: comparative evaluation of different electrode materials and different counterloads [J].

Carpi, F ;

Chiarelli, P ;

Mazzoldi, A ;

De Rossi, D .

SENSORS AND ACTUATORS A-PHYSICAL, 2003, 107 (01) :85-95

[8] Engineering carbon nanotubes and nanotube circuits using electrical breakdown [J].

Collins, PC ;

Arnold, MS ;

Avouris, P .

SCIENCE, 2001, 292 (5517) :706-709

[9]

*EPA, 2004, ACT ART MUSCL REAL P

[10] Interpenetrating polymer networks for high-performance electroelastomer artificial muscles [J].

Ha, SM ;

Yuan, W ;

Pei, QB ;

Pelrine, R ;

Stanford, S .

ADVANCED MATERIALS, 2006, 18 (07) :887-+

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