Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics

This study delves into the crucial impact of humidity on the microstructure, phase composition, dielectric, ferroelectric, and piezoelectric properties of sintered 0.06LiNbO3–0.94(K0.5Na0.5)NbO3 lead-free piezoelectric ceramics during storage. By subjecting the samples to different humidity environm...

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Main Authors: Gianni Ferrero, Malgorzata K. Pierchala, Konstantin Astafiev, Erling Ringgaard, Bhaskar Reddy Sudireddy, Astri Bjørnetun Haugen
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Open Ceramics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666539523000767
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author Gianni Ferrero
Malgorzata K. Pierchala
Konstantin Astafiev
Erling Ringgaard
Bhaskar Reddy Sudireddy
Astri Bjørnetun Haugen
author_facet Gianni Ferrero
Malgorzata K. Pierchala
Konstantin Astafiev
Erling Ringgaard
Bhaskar Reddy Sudireddy
Astri Bjørnetun Haugen
author_sort Gianni Ferrero
collection DOAJ
description This study delves into the crucial impact of humidity on the microstructure, phase composition, dielectric, ferroelectric, and piezoelectric properties of sintered 0.06LiNbO3–0.94(K0.5Na0.5)NbO3 lead-free piezoelectric ceramics during storage. By subjecting the samples to different humidity environments over six months, this research uncovers that storage conditions with 20% relative humidity or less maintain the samples unaltered. Moreover, the study reveals that exposure to higher humidity drastically decreases dielectric and piezoelectric performance in as little as two days due to adsorption of water. However, this research also demonstrates that even after six months in extremely humid conditions, the original performance can be restored with a simple and effective recovery procedure, indicating that the intrinsic performance after the adsorbed water is removed is mainly intact. This work therefore provides valuable insights into the shelf-life and possible resistance of piezoelectric ceramics to harsh environments.
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spelling doaj.art-4b8fe8f40a584092884307fc396c25282023-08-28T04:23:20ZengElsevierOpen Ceramics2666-53952023-09-0115100404Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectricsGianni Ferrero0Malgorzata K. Pierchala1Konstantin Astafiev2Erling Ringgaard3Bhaskar Reddy Sudireddy4Astri Bjørnetun Haugen5CTS Ferroperm Piezoceramics, 3490, Kvistgaard, DenmarkCTS Ferroperm Piezoceramics, 3490, Kvistgaard, DenmarkCTS Ferroperm Piezoceramics, 3490, Kvistgaard, DenmarkCTS Ferroperm Piezoceramics, 3490, Kvistgaard, DenmarkDepartment of Energy Conversion and Storage, Technical University of Denmark, Anker Engelundsvej, Building 301, 2800 Kgs, Lyngby, DenmarkDepartment of Energy Conversion and Storage, Technical University of Denmark, Anker Engelundsvej, Building 301, 2800 Kgs, Lyngby, Denmark; Corresponding author.This study delves into the crucial impact of humidity on the microstructure, phase composition, dielectric, ferroelectric, and piezoelectric properties of sintered 0.06LiNbO3–0.94(K0.5Na0.5)NbO3 lead-free piezoelectric ceramics during storage. By subjecting the samples to different humidity environments over six months, this research uncovers that storage conditions with 20% relative humidity or less maintain the samples unaltered. Moreover, the study reveals that exposure to higher humidity drastically decreases dielectric and piezoelectric performance in as little as two days due to adsorption of water. However, this research also demonstrates that even after six months in extremely humid conditions, the original performance can be restored with a simple and effective recovery procedure, indicating that the intrinsic performance after the adsorbed water is removed is mainly intact. This work therefore provides valuable insights into the shelf-life and possible resistance of piezoelectric ceramics to harsh environments.http://www.sciencedirect.com/science/article/pii/S2666539523000767Piezoelectric ceramicsHumidity effectsLead-free ceramics
spellingShingle Gianni Ferrero
Malgorzata K. Pierchala
Konstantin Astafiev
Erling Ringgaard
Bhaskar Reddy Sudireddy
Astri Bjørnetun Haugen
Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics
Open Ceramics
Piezoelectric ceramics
Humidity effects
Lead-free ceramics
title Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics
title_full Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics
title_fullStr Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics
title_full_unstemmed Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics
title_short Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics
title_sort humidity resistance and recovery of sintered sodium potassium niobate based piezoelectrics
topic Piezoelectric ceramics
Humidity effects
Lead-free ceramics
url http://www.sciencedirect.com/science/article/pii/S2666539523000767
work_keys_str_mv AT gianniferrero humidityresistanceandrecoveryofsinteredsodiumpotassiumniobatebasedpiezoelectrics
AT malgorzatakpierchala humidityresistanceandrecoveryofsinteredsodiumpotassiumniobatebasedpiezoelectrics
AT konstantinastafiev humidityresistanceandrecoveryofsinteredsodiumpotassiumniobatebasedpiezoelectrics
AT erlingringgaard humidityresistanceandrecoveryofsinteredsodiumpotassiumniobatebasedpiezoelectrics
AT bhaskarreddysudireddy humidityresistanceandrecoveryofsinteredsodiumpotassiumniobatebasedpiezoelectrics
AT astribjørnetunhaugen humidityresistanceandrecoveryofsinteredsodiumpotassiumniobatebasedpiezoelectrics