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Title: Strain sensors, methods of making same, and applications of same

In one aspect, the present invention relates to a layered structure usable in a strain sensor. In one embodiment, the layered structure has a substrate with a first surface and an opposite, second surface defining a body portion therebetween; and a film of carbon nanotubes deposited on the first surface of the substrate, wherein the film of carbon nanotubes is conductive and characterized with an electrical resistance. In one embodiment, the carbon nanotubes are aligned in a preferential direction. In one embodiment, the carbon nanotubes are formed in a yarn such that any mechanical stress increases their electrical response. In one embodiment, the carbon nanotubes are incorporated into a polymeric scaffold that is attached to the surface of the substrate. In one embodiment, the surfaces of the carbon nanotubes are functionalized such that its electrical conductivity is increased.
Authors:
; ;
Publication Date:
OSTI Identifier:
1187946
Report Number(s):
9,068,283
13/662,955
DOE Contract Number:
FG36-06GO86072
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Oct 29
Research Org:
Board of Trustees of the University of Arkansas, Little Rock, AR (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY