Use of Industrial Waste to Produce Ceramic Coatings on Metal
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.14207/ejsd.2019.v8n5p9 http://hdl.handle.net/11449/197492 |
Resumo: | Industrial processes are activities that produce large amounts of wastes. Often these wastes are disposed in dam or landfills, occupying large areas and causing environmental damage such as the contamination of water and soil. According to the Circular Economy concept, waste should be minimized and reused as raw material in a new process. This work describes two residues, namely red mud (bauxite residue) and waste foundry sand (WFS), whose chemical compositions indicate their suitability for use as protective coatings. These residues were used to obtain coatings on aluminum alloy by employing plasma electrolytic oxidation (PEO). The PEO process enables the creation of coatings that are durable, uniform, and strongly adherent on metallic components of different shapes. The mineralogical compositions of the coatings were investigated using X-ray diffraction (XRD). Surface wettability was determined by contact angle measurements and evaluation was made of the average surface roughness. Alumina was the main phase observed by XR, indicating good chemical stability and high thermal resistance. The coatings obtained with the red mud were thicker and less rough, compared to those obtained with the WFS. The results demonstrated the feasibility of using these wastes for coating metals in order to improve their properties and enable new applications. |
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Use of Industrial Waste to Produce Ceramic Coatings on MetalIndustrial WasteRed MudWaste Foundry SandCircular EconomyCeramic CoatingIndustrial processes are activities that produce large amounts of wastes. Often these wastes are disposed in dam or landfills, occupying large areas and causing environmental damage such as the contamination of water and soil. According to the Circular Economy concept, waste should be minimized and reused as raw material in a new process. This work describes two residues, namely red mud (bauxite residue) and waste foundry sand (WFS), whose chemical compositions indicate their suitability for use as protective coatings. These residues were used to obtain coatings on aluminum alloy by employing plasma electrolytic oxidation (PEO). The PEO process enables the creation of coatings that are durable, uniform, and strongly adherent on metallic components of different shapes. The mineralogical compositions of the coatings were investigated using X-ray diffraction (XRD). Surface wettability was determined by contact angle measurements and evaluation was made of the average surface roughness. Alumina was the main phase observed by XR, indicating good chemical stability and high thermal resistance. The coatings obtained with the red mud were thicker and less rough, compared to those obtained with the WFS. The results demonstrated the feasibility of using these wastes for coating metals in order to improve their properties and enable new applications.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Sao Paulo State Univ UNESP, Sorocaba, SP, BrazilSao Paulo State Univ UNESP, Sorocaba, SP, BrazilEuropean Center Sustainable DevelopmentUniversidade Estadual Paulista (Unesp)Pereira Antunes, Maria Lucia [UNESP]Souza, C. S. [UNESP]Moraes, R. F. [UNESP]Rangel, E. C. [UNESP]Cruz, N. C. [UNESP]2020-12-10T23:58:44Z2020-12-10T23:58:44Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article9-15http://dx.doi.org/10.14207/ejsd.2019.v8n5p9European Journal Of Sustainable Development. Rome: European Center Sustainable Development, v. 8, n. 5, p. 9-15, 2019.2239-5938http://hdl.handle.net/11449/19749210.14207/ejsd.2019.v8n5p9WOS:000488622800002Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEuropean Journal Of Sustainable Developmentinfo:eu-repo/semantics/openAccess2021-10-22T20:04:06Zoai:repositorio.unesp.br:11449/197492Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T20:04:06Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
title |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
spellingShingle |
Use of Industrial Waste to Produce Ceramic Coatings on Metal Pereira Antunes, Maria Lucia [UNESP] Industrial Waste Red Mud Waste Foundry Sand Circular Economy Ceramic Coating |
title_short |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
title_full |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
title_fullStr |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
title_full_unstemmed |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
title_sort |
Use of Industrial Waste to Produce Ceramic Coatings on Metal |
author |
Pereira Antunes, Maria Lucia [UNESP] |
author_facet |
Pereira Antunes, Maria Lucia [UNESP] Souza, C. S. [UNESP] Moraes, R. F. [UNESP] Rangel, E. C. [UNESP] Cruz, N. C. [UNESP] |
author_role |
author |
author2 |
Souza, C. S. [UNESP] Moraes, R. F. [UNESP] Rangel, E. C. [UNESP] Cruz, N. C. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pereira Antunes, Maria Lucia [UNESP] Souza, C. S. [UNESP] Moraes, R. F. [UNESP] Rangel, E. C. [UNESP] Cruz, N. C. [UNESP] |
dc.subject.por.fl_str_mv |
Industrial Waste Red Mud Waste Foundry Sand Circular Economy Ceramic Coating |
topic |
Industrial Waste Red Mud Waste Foundry Sand Circular Economy Ceramic Coating |
description |
Industrial processes are activities that produce large amounts of wastes. Often these wastes are disposed in dam or landfills, occupying large areas and causing environmental damage such as the contamination of water and soil. According to the Circular Economy concept, waste should be minimized and reused as raw material in a new process. This work describes two residues, namely red mud (bauxite residue) and waste foundry sand (WFS), whose chemical compositions indicate their suitability for use as protective coatings. These residues were used to obtain coatings on aluminum alloy by employing plasma electrolytic oxidation (PEO). The PEO process enables the creation of coatings that are durable, uniform, and strongly adherent on metallic components of different shapes. The mineralogical compositions of the coatings were investigated using X-ray diffraction (XRD). Surface wettability was determined by contact angle measurements and evaluation was made of the average surface roughness. Alumina was the main phase observed by XR, indicating good chemical stability and high thermal resistance. The coatings obtained with the red mud were thicker and less rough, compared to those obtained with the WFS. The results demonstrated the feasibility of using these wastes for coating metals in order to improve their properties and enable new applications. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-10T23:58:44Z 2020-12-10T23:58:44Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.14207/ejsd.2019.v8n5p9 European Journal Of Sustainable Development. Rome: European Center Sustainable Development, v. 8, n. 5, p. 9-15, 2019. 2239-5938 http://hdl.handle.net/11449/197492 10.14207/ejsd.2019.v8n5p9 WOS:000488622800002 |
url |
http://dx.doi.org/10.14207/ejsd.2019.v8n5p9 http://hdl.handle.net/11449/197492 |
identifier_str_mv |
European Journal Of Sustainable Development. Rome: European Center Sustainable Development, v. 8, n. 5, p. 9-15, 2019. 2239-5938 10.14207/ejsd.2019.v8n5p9 WOS:000488622800002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
European Journal Of Sustainable Development |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
9-15 |
dc.publisher.none.fl_str_mv |
European Center Sustainable Development |
publisher.none.fl_str_mv |
European Center Sustainable Development |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965489746673664 |