Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/108271
DC Field | Value | Language |
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dc.contributor.author | Ramos, Ana Sofia | - |
dc.contributor.author | Maj, Lukasz | - |
dc.contributor.author | Morgiel, Jerzy | - |
dc.contributor.author | Vieira, Maria Teresa | - |
dc.date.accessioned | 2023-08-22T08:36:30Z | - |
dc.date.available | 2023-08-22T08:36:30Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 2075-4701 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/108271 | - |
dc.description.abstract | Self-healing materials are able to partially or completely reverse the damage inflicted on them. The possibility of self-healing mechanical and chemical failures that occur during service will improve the lifetime and reliability of structural materials. For this purpose, two main steps must be considered: (i) detection, and (ii) repairing (healing) of cracks. The exothermic character of reactive multilayers has potential for self-healing applications, namely in the healing step. In this context, Ni(V)/Al multilayer thin films were deposited onto tungsten wires by magnetron sputtering from two targets. A detailed microstructural characterization was carried out by scanning and transmission electron microscopy after deposition, as well as after ignition by applying an electrical discharge. The as-deposited films presented an irregular layered structure with local defects not observed for flat substrates, although Ni- and Al-rich nanolayers could be distinguished. The as-reacted films were constituted by Al3Ni2 grains with Al3V phase at the grain boundaries. In order to use reactive multilayers for self-healing purposes, the heat released must be maximised by improving the microstructure of the nanolayered films. Nevertheless, after ignition, the Ni(V)/Al multilayer films deposited onto W wire underwent a self-sustained reaction, releasing heat. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | UID/EMS/00285/2013 | pt |
dc.relation | SFRH/BPD/109788/2015 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | reactive multilayers | pt |
dc.subject | self-propagation | pt |
dc.subject | coated wires | pt |
dc.subject | TEM | pt |
dc.subject | self-healing | pt |
dc.title | Coating of Tungsten Wire with Ni/Al Multilayers for Self-Healing Applications | pt |
dc.type | article | - |
degois.publication.firstPage | 574 | pt |
degois.publication.issue | 12 | pt |
degois.publication.title | Metals | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/met7120574 | pt |
degois.publication.volume | 7 | pt |
dc.date.embargo | 2017-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | Com Texto completo | - |
crisitem.author.researchunit | CEMMPRE - Centre for Mechanical Engineering, Materials and Processes | - |
crisitem.author.researchunit | CEMMPRE - Centre for Mechanical Engineering, Materials and Processes | - |
crisitem.author.orcid | 0000-0002-8486-5436 | - |
crisitem.author.orcid | 0000-0001-9981-3826 | - |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
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Coating-of-tungsten-wire-with-NiAl-multilayers-for-selfhealing-applicationsMetals.pdf | 23.65 MB | Adobe PDF | View/Open |
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This item is licensed under a Creative Commons License