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Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance

This study investigates the corrosion mechanism on 100 wt.% MgO and 95 wt.% MgO with 5 wt.% nano-ZrO(2) ceramic composites. First, MgO powder and powder mixtures (MgO + nano ZrO(2)) were uniaxially and isostatically pressed; then, they were sintered at 1650 °C. Corrosion by copper slag was studied i...

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Autores principales: Gómez-Rodríguez, Cristian, Antonio-Zárate, Yanet, Revuelta-Acosta, Josept, Verdeja, Luis Felipe, Fernández-González, Daniel, López-Perales, Jesús Fernando, Rodríguez-Castellanos, Edén Amaral, García-Quiñonez, Linda Viviana, Castillo-Rodríguez, Guadalupe Alan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125461/
https://www.ncbi.nlm.nih.gov/pubmed/33924883
http://dx.doi.org/10.3390/ma14092277
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author Gómez-Rodríguez, Cristian
Antonio-Zárate, Yanet
Revuelta-Acosta, Josept
Verdeja, Luis Felipe
Fernández-González, Daniel
López-Perales, Jesús Fernando
Rodríguez-Castellanos, Edén Amaral
García-Quiñonez, Linda Viviana
Castillo-Rodríguez, Guadalupe Alan
author_facet Gómez-Rodríguez, Cristian
Antonio-Zárate, Yanet
Revuelta-Acosta, Josept
Verdeja, Luis Felipe
Fernández-González, Daniel
López-Perales, Jesús Fernando
Rodríguez-Castellanos, Edén Amaral
García-Quiñonez, Linda Viviana
Castillo-Rodríguez, Guadalupe Alan
author_sort Gómez-Rodríguez, Cristian
collection PubMed
description This study investigates the corrosion mechanism on 100 wt.% MgO and 95 wt.% MgO with 5 wt.% nano-ZrO(2) ceramic composites. First, MgO powder and powder mixtures (MgO + nano ZrO(2)) were uniaxially and isostatically pressed; then, they were sintered at 1650 °C. Corrosion by copper slag was studied in sintered samples. Physical properties, microstructure, and penetration of the slag in the refractory were studied. Results reveal that ZrO(2) nanoparticles enhanced the samples’ densification, promoting grain growth due to diffusion of vacancies during the sintering process. Additionally, magnesia bricks were severely corroded, if compared with those doped with nano-ZrO(2), mainly due to the dissolution of MgO grains during the chemical attack by copper slag.
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spelling pubmed-81254612021-05-17 Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance Gómez-Rodríguez, Cristian Antonio-Zárate, Yanet Revuelta-Acosta, Josept Verdeja, Luis Felipe Fernández-González, Daniel López-Perales, Jesús Fernando Rodríguez-Castellanos, Edén Amaral García-Quiñonez, Linda Viviana Castillo-Rodríguez, Guadalupe Alan Materials (Basel) Communication This study investigates the corrosion mechanism on 100 wt.% MgO and 95 wt.% MgO with 5 wt.% nano-ZrO(2) ceramic composites. First, MgO powder and powder mixtures (MgO + nano ZrO(2)) were uniaxially and isostatically pressed; then, they were sintered at 1650 °C. Corrosion by copper slag was studied in sintered samples. Physical properties, microstructure, and penetration of the slag in the refractory were studied. Results reveal that ZrO(2) nanoparticles enhanced the samples’ densification, promoting grain growth due to diffusion of vacancies during the sintering process. Additionally, magnesia bricks were severely corroded, if compared with those doped with nano-ZrO(2), mainly due to the dissolution of MgO grains during the chemical attack by copper slag. MDPI 2021-04-28 /pmc/articles/PMC8125461/ /pubmed/33924883 http://dx.doi.org/10.3390/ma14092277 Text en © 2021 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 Communication
Gómez-Rodríguez, Cristian
Antonio-Zárate, Yanet
Revuelta-Acosta, Josept
Verdeja, Luis Felipe
Fernández-González, Daniel
López-Perales, Jesús Fernando
Rodríguez-Castellanos, Edén Amaral
García-Quiñonez, Linda Viviana
Castillo-Rodríguez, Guadalupe Alan
Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance
title Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance
title_full Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance
title_fullStr Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance
title_full_unstemmed Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance
title_short Research and Development of Novel Refractory of MgO Doped with ZrO(2) Nanoparticles for Copper Slag Resistance
title_sort research and development of novel refractory of mgo doped with zro(2) nanoparticles for copper slag resistance
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125461/
https://www.ncbi.nlm.nih.gov/pubmed/33924883
http://dx.doi.org/10.3390/ma14092277
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