Carbon nanotube forest growth on NiTi shape memory alloy thin films for thermal actuation

被引：18

作者：

Bayer, B. C. ^{[1
]}

Sanjabi, S. ^{[2
]}

Baehtz, C. ^{[3
]}

Wirth, C. T. ^{[1
]}

Esconjauregui, S. ^{[1
]}

Weatherup, R. S. ^{[1
]}

Barber, Z. H. ^{[2
]}

Hofmann, S. ^{[1
]}

Robertson, J. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[3] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany

来源：

THIN SOLID FILMS | 2011年 / 519卷 / 18期

关键词：

Carbon nanotubes; Shape memory alloys; Chemical vapour deposition; NiTi; Thermal management; OXIDE THICKNESS;

D O I：

10.1016/j.tsf.2011.03.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Actuation frequencies in thermally triggered Shape Memory Alloy (SMA) thin films are limited by the slow heat transport into/out of the films. Carbon Nanotubes (CNTs) are known to exhibit an exceptionally high thermal conductivity. Thus, we propose to thermally contact SMA films with CNTs to increase SMA actuation frequencies by enhanced heat transport through the CNTs. The basic requirement for this envisaged nanotube application is to obtain CNT forest growth on a SMA material while retaining a reversible martensitic transformation, as required for Shape Memory Effect exploitation. We show how such growth can be achieved on thin films of the SMA material NiTi. Future work is needed to measure thermal properties and obtainable cycling frequencies of CNT-SMA structures. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：6126 / 6129

页数：4

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