Strain Paint: Noncontact Strain Measurement Using Single-Walled Carbon Nanotube Composite Coatings

被引：44

作者：

Withey, Paul A. ^{[1
,4
,5
]}

Vemuru, Venkata Srivishnu M. ^{[2
,3
,4
]}

Bachilo, Sergei M. ^{[1
,4
]}

Nagarajaiah, Satish ^{[2
,3
,4
]}

Weisman, R. Bruce ^{[1
,4
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

[2] Rice Univ, Dept Mech Engn & Mat Sci, Houston, TX 77005 USA

[3] Rice Univ, Dept Civil & Environm Engn, Houston, TX 77005 USA

[4] Rice Univ, RE Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA

[5] Univ Houston Clear Lake, Dept Phys, Houston, TX 77058 USA

来源：

NANO LETTERS | 2012年 / 12卷 / 07期

基金：

美国国家科学基金会;

关键词：

SWCNT; fluorescence shifts; photoluminescence spectroscopy; structural health monitoring; ELECTRONIC-STRUCTURE;

D O I：

10.1021/nl301008m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Composite coatings have been developed that reveal strains in underlying structural elements through noncontact optical measurement. Dilute individualized single-walled carbon nanotubes are embedded in a polymeric host and applied to form a thin coating. Strain in the substrate is transmitted through the polymer to the nanotubes, causing systematic and predictable spectral shifts of the nanotube near-infrared fluorescence peaks. This new method allows quick and precise strain measurements at any position and along any direction of the substrate.

引用

页码：3497 / 3500

页数：4

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