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Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration

The structural integrity of mechanical components is assessed by FBG sensors in many industrial fields. The FBG sensor has a relevant application at very high or low temperatures. To avoid the variability of the reflected spectrum and the mechanical properties degradation of the FBG sensor, metal co...

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Autores principales: Lupi, Carla, Vendittozzi, Cristian, Ciro, Erwin, Felli, Ferdinando, Pilone, Daniela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10141016/
https://www.ncbi.nlm.nih.gov/pubmed/37109779
http://dx.doi.org/10.3390/ma16082943
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author Lupi, Carla
Vendittozzi, Cristian
Ciro, Erwin
Felli, Ferdinando
Pilone, Daniela
author_facet Lupi, Carla
Vendittozzi, Cristian
Ciro, Erwin
Felli, Ferdinando
Pilone, Daniela
author_sort Lupi, Carla
collection PubMed
description The structural integrity of mechanical components is assessed by FBG sensors in many industrial fields. The FBG sensor has a relevant application at very high or low temperatures. To avoid the variability of the reflected spectrum and the mechanical properties degradation of the FBG sensor, metal coatings have been used to guarantee the grating’s integrity in extreme temperature environments. Particularly, at high temperatures, Ni could be a suitable selection as a coating to improve the features of FBG sensors. Furthermore, it was demonstrated that Ni coating and high-temperature treatments can recover a broken, seemingly unusable sensor. In this work, two main objectives were pursued: first, the determination of the best operative parameters to achieve the most compact, adherent, and homogeneous coating; second, the correlation between the obtained morphology and structure and the FBG spectrum modification, once Ni was deposited on the FBG sensor. The Ni coating was deposited from aqueous solutions. By performing heat treatments of the Ni-coated FBG sensor, it was investigated how the wavelength (WL) varied as a function of temperature and how that variation was caused by the structural or dimensional change of the Ni coating.
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spelling pubmed-101410162023-04-29 Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration Lupi, Carla Vendittozzi, Cristian Ciro, Erwin Felli, Ferdinando Pilone, Daniela Materials (Basel) Article The structural integrity of mechanical components is assessed by FBG sensors in many industrial fields. The FBG sensor has a relevant application at very high or low temperatures. To avoid the variability of the reflected spectrum and the mechanical properties degradation of the FBG sensor, metal coatings have been used to guarantee the grating’s integrity in extreme temperature environments. Particularly, at high temperatures, Ni could be a suitable selection as a coating to improve the features of FBG sensors. Furthermore, it was demonstrated that Ni coating and high-temperature treatments can recover a broken, seemingly unusable sensor. In this work, two main objectives were pursued: first, the determination of the best operative parameters to achieve the most compact, adherent, and homogeneous coating; second, the correlation between the obtained morphology and structure and the FBG spectrum modification, once Ni was deposited on the FBG sensor. The Ni coating was deposited from aqueous solutions. By performing heat treatments of the Ni-coated FBG sensor, it was investigated how the wavelength (WL) varied as a function of temperature and how that variation was caused by the structural or dimensional change of the Ni coating. MDPI 2023-04-07 /pmc/articles/PMC10141016/ /pubmed/37109779 http://dx.doi.org/10.3390/ma16082943 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lupi, Carla
Vendittozzi, Cristian
Ciro, Erwin
Felli, Ferdinando
Pilone, Daniela
Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration
title Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration
title_full Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration
title_fullStr Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration
title_full_unstemmed Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration
title_short Metallurgical Aspects of Ni-Coating and High Temperature Treatments for FBG Spectrum Regeneration
title_sort metallurgical aspects of ni-coating and high temperature treatments for fbg spectrum regeneration
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10141016/
https://www.ncbi.nlm.nih.gov/pubmed/37109779
http://dx.doi.org/10.3390/ma16082943
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