Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation

Abstract The effect of growth conditions and post treatments on the properties of calcium phosphate films electrodeposited by a potentiostat of the authors’ design and construction is presented. The electrolyte used was formed with 0.025 M (NH4)H2PO4 and 0.042 M Ca(NO3)2.4H2O, and its pH was kept at...

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Main Authors: F. N. Jiménez-García, L.R. Giraldo-Torres, E. Restrepo-Parra
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2021-09-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500226&tlng=en
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author F. N. Jiménez-García
L.R. Giraldo-Torres
E. Restrepo-Parra
author_facet F. N. Jiménez-García
L.R. Giraldo-Torres
E. Restrepo-Parra
author_sort F. N. Jiménez-García
collection DOAJ
description Abstract The effect of growth conditions and post treatments on the properties of calcium phosphate films electrodeposited by a potentiostat of the authors’ design and construction is presented. The electrolyte used was formed with 0.025 M (NH4)H2PO4 and 0.042 M Ca(NO3)2.4H2O, and its pH was kept at 5. A voltametric analysis was performed to determine the necessary potential values to obtain the films. Additionally, the temperature of the electrolyte was varied to determine its influence on the properties of the deposited films. The films were characterized by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy. The films deposited at -1.4 V and -1.7 V present the brushite phase. The thermal post-treatment favored the formation of octagonal calcium phosphate in amorphous phase, while the basic treatment provided the OH- groups necessary for the formation of hydroxyapatite. The low cost potentiostat implemented presents excellent characteristics for obtaining films with similar characteristics to those obtained with a conventional potentiostat.
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publishDate 2021-09-01
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spelling doaj.art-af21aea90c2147e5b807d8e440a1571a2022-12-21T21:34:14ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392021-09-0124510.1590/1980-5373-mr-2021-0098Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and ImplementationF. N. Jiménez-Garcíahttps://orcid.org/0000-0003-1546-8426L.R. Giraldo-Torreshttps://orcid.org/0000-0002-8366-6478E. Restrepo-ParraAbstract The effect of growth conditions and post treatments on the properties of calcium phosphate films electrodeposited by a potentiostat of the authors’ design and construction is presented. The electrolyte used was formed with 0.025 M (NH4)H2PO4 and 0.042 M Ca(NO3)2.4H2O, and its pH was kept at 5. A voltametric analysis was performed to determine the necessary potential values to obtain the films. Additionally, the temperature of the electrolyte was varied to determine its influence on the properties of the deposited films. The films were characterized by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy. The films deposited at -1.4 V and -1.7 V present the brushite phase. The thermal post-treatment favored the formation of octagonal calcium phosphate in amorphous phase, while the basic treatment provided the OH- groups necessary for the formation of hydroxyapatite. The low cost potentiostat implemented presents excellent characteristics for obtaining films with similar characteristics to those obtained with a conventional potentiostat.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500226&tlng=enCalcium phosphateelectrodepositionpotentiostatbasic treatmentthermal treatment
spellingShingle F. N. Jiménez-García
L.R. Giraldo-Torres
E. Restrepo-Parra
Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation
Materials Research
Calcium phosphate
electrodeposition
potentiostat
basic treatment
thermal treatment
title Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation
title_full Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation
title_fullStr Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation
title_full_unstemmed Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation
title_short Electrochemically Deposited Calcium Phosphate Coatings Using a Potentiostat of In-house Design and Implementation
title_sort electrochemically deposited calcium phosphate coatings using a potentiostat of in house design and implementation
topic Calcium phosphate
electrodeposition
potentiostat
basic treatment
thermal treatment
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000500226&tlng=en
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AT lrgiraldotorres electrochemicallydepositedcalciumphosphatecoatingsusingapotentiostatofinhousedesignandimplementation
AT erestrepoparra electrochemicallydepositedcalciumphosphatecoatingsusingapotentiostatofinhousedesignandimplementation