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https://hdl.handle.net/1822/78227
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Campo DC | Valor | Idioma |
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dc.contributor.author | Parveen, Shama | por |
dc.contributor.author | Vilela, Bruno | por |
dc.contributor.author | Lagido, Olinda | por |
dc.contributor.author | Rana, Sohel | por |
dc.contributor.author | Fangueiro, Raúl | por |
dc.date.accessioned | 2022-06-03T13:32:04Z | - |
dc.date.available | 2022-06-03T13:32:04Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Parveen, S.; Vilela, B.; Lagido, O.; Rana, S.; Fangueiro, R. Development of Multi-Scale Carbon Nanofiber and Nanotube-Based Cementitious Composites for Reliable Sensing of Tensile Stresses. Nanomaterials 2022, 12, 74. https://doi.org/10.3390/nano12010074 | por |
dc.identifier.issn | 2079-4991 | - |
dc.identifier.uri | https://hdl.handle.net/1822/78227 | - |
dc.description.abstract | In this work, multi-scale cementitious composites containing short carbon fibers (CFs) and carbon nanofibers (CNFs)/multi-walled carbon nanotubes (MWCNTs) were studied for their tensile stress sensing properties. CF-based composites were prepared by mixing 0.25, 0.5 and 0.75 wt.% CFs (of cement) with water using magnetic stirring and Pluronic F-127 surfactant and adding the mixture to the cement paste. In multi-scale composites, CNFs/MWCNTs (0.1 and 0.15 wt.% of cement) were dispersed in water using Pluronic F-127 and ultrasonication and CFs were then added before mixing with the cement paste. All composites showed a reversible change in the electrical resistivity with tensile loading; the electrical resistivity increased and decreased with the increase and decrease in the tensile load/stress, respectively. Although CF-based composites showed the highest stress sensitivity among all specimens at 0.25% CF content, the fractional change in resistivity (FCR) did not show a linear correlation with the tensile load/stress. On the contrary, multi-scale composites containing CNFs (0.15% CNFs with 0.75% CFs) and MWCNTs (0.1% MWCNTs with 0.5% CFs) showed good stress sensitivity, along with a linear correlation between FCR and tensile load/stress. Stress sensitivities of 6.36 and 11.82%/MPa were obtained for the best CNF and MWCNT-based multi-scale composite sensors, respectively. | por |
dc.description.sponsorship | The research is funded by Fibrenamics, Institute of Innovation in Fiber-based Materials and Composites and University of Minho—Guimarães, Portugal, Project UID/CTM/00264/2019 of 2C2T—Centro de Ciência e Tecnologia Têxtil, funded by National Funds through FCT/MCTES. The APC is funded by the School of Arts and Humanities, University of Huddersfield and Fibernamics, Institute of Innovation in Fiber-based Materials and Composites and University of Minho—Guimarães, Portugal, Project UID/CTM/00264/2019 of 2C2T—Centro de Ciência e Tecnologia Têxtil, funded by National Funds through FCT/MCTES. | por |
dc.language.iso | eng | por |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FCTM%2F00264%2F2019/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FCTM%2F00264%2F2019/PT | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Multi-scale composites | por |
dc.subject | Carbon fibers | por |
dc.subject | Cement | por |
dc.subject | Carbon nanotubes | por |
dc.subject | Stress sensing | por |
dc.title | Development of multi-scale carbon nanofiber and nanotube-based cementitious composites for reliable sensing of tensile stresses | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/2079-4991/12/1/74 | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 22 | por |
oaire.citationIssue | 1 | por |
oaire.citationVolume | 12 | por |
dc.date.updated | 2022-01-10T14:41:12Z | - |
dc.identifier.doi | 10.3390/nano12010074 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Nanomaterials | por |
oaire.version | VoR | por |
dc.identifier.articlenumber | 74 | por |
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nanomaterials-12-00074-v2.pdf | 11,35 MB | Adobe PDF | Ver/Abrir |
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