TY - JOUR
T1 - Ultrasensitive strain sensors made from metal-coated carbon nanofiller/epoxy composites
AU - Hu, Ning
AU - Itoi, Takaomi
AU - Akagi, Taro
AU - Kojima, Takashi
AU - Xue, Junmin
AU - Yan, Cheng
AU - Atobe, Satoshi
AU - Fukunaga, Hisao
AU - Yuan, Weifeng
AU - Ning, Huiming
AU - Surina,
AU - Liu, Yaolu
AU - Alamusi,
N1 - Funding Information:
This work is partly supported by two Grand-in-Aids for Scientific Research (No. 22360044 ) from the Japanese Ministry of Education, Culture, Sports, Science and Technology .
PY - 2013/1
Y1 - 2013/1
N2 - A set of resistance-type strain sensors has been fabricated from metal-coated carbon nanofiller (CNF)/epoxy composites. Two nanofillers, i.e., multi-walled carbon nanotubes and vapor growth carbon fibers (VGCFs) with nickel, copper and silver coatings were used. The ultrahigh strain sensitivity was observed in these novel sensors as compared to the sensors made from the CNFs without metal-coating, and conventional strain gauges. In terms of gauge factor, the sensor made of VGCFs with silver coating is estimated to be 155, which is around 80 times higher than that in a metal-foil strain gauge. The possible mechanism responsible for the high sensitivity and its dependence with the networks of the CNFs with and without metal-coating and the geometries of the CNFs were thoroughly investigated.
AB - A set of resistance-type strain sensors has been fabricated from metal-coated carbon nanofiller (CNF)/epoxy composites. Two nanofillers, i.e., multi-walled carbon nanotubes and vapor growth carbon fibers (VGCFs) with nickel, copper and silver coatings were used. The ultrahigh strain sensitivity was observed in these novel sensors as compared to the sensors made from the CNFs without metal-coating, and conventional strain gauges. In terms of gauge factor, the sensor made of VGCFs with silver coating is estimated to be 155, which is around 80 times higher than that in a metal-foil strain gauge. The possible mechanism responsible for the high sensitivity and its dependence with the networks of the CNFs with and without metal-coating and the geometries of the CNFs were thoroughly investigated.
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U2 - 10.1016/j.carbon.2012.08.029
DO - 10.1016/j.carbon.2012.08.029
M3 - Article
AN - SCOPUS:84868098057
VL - 51
SP - 202
EP - 212
JO - Carbon
JF - Carbon
SN - 0008-6223
IS - 1
ER -