| Full text | |
| Author(s): |
Braga, Thyago Santos
[1, 2]
;
Vieira, Nirton C. S.
[3]
;
Antonelli, Eduardo
[3]
;
Rosa, Filipe Menezes
[1]
;
Donadon, Mauricio Vicente
[2]
;
Corat, Evaldo Jose
[1]
Total Authors: 6
|
| Affiliation: | [1] Natl Inst Space Res, BR-12227010 Sao Jose Dos Campos - Brazil
[2] Aeronaut Inst Technol, Dept Aeronaut, Sao Jose Dos Campos - Brazil
[3] Univ Fed Sao Paulo, Inst Sci & Technol, BR-12231280 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | SENSORS AND ACTUATORS A-PHYSICAL; v. 315, NOV 1 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
This study introduces fast manufactured (4-5 hours) vertical aligned carbon nanotubes/polydimethylsiloxane (VACNT/PDMS) stretchable sensor for aircraft structures and polymer composites. The VACNT growth method from thermal CVD with camphor and ferrocene precursors create a dense and homogeneous CNT structure with many ohmic conducting paths that surpass any more resistive tunneling phenomena. The extensive AC/DC piezoresistive performance investigation shows ohmic conduction. The VACNTs/PDMS sensor presented high linearity (r(2) = 0.99) under similar to 20 % strain with an average gauge factor of 3.28 at DC measurements and minor resistance variations (0.052 %) attributed to the copper terminals electrodeposition. An important feature is the resistance value compatible with conventional extensometry equipment. The DC gauge factor was similar to 60 % higher than the conventional metallic strain gauge allowing measurements within a wider strain range. (C) 2020 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 12/15857-1 - Scientific studies and innovation application on CVD diamond, DLC and carbon nanostructures obtained by chemical vapor deposition technique |
| Grantee: | Vladimir Jesus Trava-Airoldi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/07508-3 - Exploring the electrical and optical properties of graphene derivatives for the detection of cyanotoxins |
| Grantee: | Nirton Cristi Silva Vieira |
| Support Opportunities: | Regular Research Grants |