Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite
- Autores
- Moreira Toja, Ramiro Julián; Rendtorff Birrer, Nicolás Maximiliano; Aglietti, Esteban Fausto; Uchikoshi, Tetsuo; Sakka, Yoshio; Suárez, Gustavo
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Lanthanum silicate oxyapatite (LSO) is an encouraging material for its use as an electrolyte in intermediate temperature solid oxide fuel cells. There is a vacancy in knowledge respecting to LSO's mechanical properties, and thus they are the scope of research of the present work. Isostatically pressed bars were sintered at temperatures from 1200 °C to 1500 °C. The dependence of Young's modulus with porosity was fitted using three different modeling curves, and extrapolated for a fully dense material. The fitting of these equations give an E0 between 144 GPa and 169 GPa. This is the first time that LSO's Young's modulus is reported. Flexural strength,Vickers hardness, fracture toughness (KIC) from microindentation cracks and nanohardness were also measured. Scanning electron micrography was performed on both a sub-sintered and the most sintered sample, and the microstructure and fracture mechanism were analyzed. In general, the mechanical behaviour is similar to other intermediate temperature solid oxide electrolytes. The fracture mechanism of the most sintered sample makes it well-suited for future SOFC applications.
Centro de Tecnología de Recursos Minerales y Cerámica - Materia
-
Química
Lanthanum silicate oxyapatite
Mechanical properties
Young's modulus
Fracture - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/164068
Ver los metadatos del registro completo
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Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatiteMoreira Toja, Ramiro JuliánRendtorff Birrer, Nicolás MaximilianoAglietti, Esteban FaustoUchikoshi, TetsuoSakka, YoshioSuárez, GustavoQuímicaLanthanum silicate oxyapatiteMechanical propertiesYoung's modulusFractureLanthanum silicate oxyapatite (LSO) is an encouraging material for its use as an electrolyte in intermediate temperature solid oxide fuel cells. There is a vacancy in knowledge respecting to LSO's mechanical properties, and thus they are the scope of research of the present work. Isostatically pressed bars were sintered at temperatures from 1200 °C to 1500 °C. The dependence of Young's modulus with porosity was fitted using three different modeling curves, and extrapolated for a fully dense material. The fitting of these equations give an E0 between 144 GPa and 169 GPa. This is the first time that LSO's Young's modulus is reported. Flexural strength,Vickers hardness, fracture toughness (KIC) from microindentation cracks and nanohardness were also measured. Scanning electron micrography was performed on both a sub-sintered and the most sintered sample, and the microstructure and fracture mechanism were analyzed. In general, the mechanical behaviour is similar to other intermediate temperature solid oxide electrolytes. The fracture mechanism of the most sintered sample makes it well-suited for future SOFC applications.Centro de Tecnología de Recursos Minerales y Cerámica2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf14348-14354http://sedici.unlp.edu.ar/handle/10915/164068enginfo:eu-repo/semantics/altIdentifier/issn/0272-8842info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2018.05.043info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:43:11Zoai:sedici.unlp.edu.ar:10915/164068Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:43:11.377SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
title |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
spellingShingle |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite Moreira Toja, Ramiro Julián Química Lanthanum silicate oxyapatite Mechanical properties Young's modulus Fracture |
title_short |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
title_full |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
title_fullStr |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
title_full_unstemmed |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
title_sort |
Influence of the porosity caused by incomplete sintering on the mechanical behaviour of lanthanum silicate oxyapatite |
dc.creator.none.fl_str_mv |
Moreira Toja, Ramiro Julián Rendtorff Birrer, Nicolás Maximiliano Aglietti, Esteban Fausto Uchikoshi, Tetsuo Sakka, Yoshio Suárez, Gustavo |
author |
Moreira Toja, Ramiro Julián |
author_facet |
Moreira Toja, Ramiro Julián Rendtorff Birrer, Nicolás Maximiliano Aglietti, Esteban Fausto Uchikoshi, Tetsuo Sakka, Yoshio Suárez, Gustavo |
author_role |
author |
author2 |
Rendtorff Birrer, Nicolás Maximiliano Aglietti, Esteban Fausto Uchikoshi, Tetsuo Sakka, Yoshio Suárez, Gustavo |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Química Lanthanum silicate oxyapatite Mechanical properties Young's modulus Fracture |
topic |
Química Lanthanum silicate oxyapatite Mechanical properties Young's modulus Fracture |
dc.description.none.fl_txt_mv |
Lanthanum silicate oxyapatite (LSO) is an encouraging material for its use as an electrolyte in intermediate temperature solid oxide fuel cells. There is a vacancy in knowledge respecting to LSO's mechanical properties, and thus they are the scope of research of the present work. Isostatically pressed bars were sintered at temperatures from 1200 °C to 1500 °C. The dependence of Young's modulus with porosity was fitted using three different modeling curves, and extrapolated for a fully dense material. The fitting of these equations give an E0 between 144 GPa and 169 GPa. This is the first time that LSO's Young's modulus is reported. Flexural strength,Vickers hardness, fracture toughness (KIC) from microindentation cracks and nanohardness were also measured. Scanning electron micrography was performed on both a sub-sintered and the most sintered sample, and the microstructure and fracture mechanism were analyzed. In general, the mechanical behaviour is similar to other intermediate temperature solid oxide electrolytes. The fracture mechanism of the most sintered sample makes it well-suited for future SOFC applications. Centro de Tecnología de Recursos Minerales y Cerámica |
description |
Lanthanum silicate oxyapatite (LSO) is an encouraging material for its use as an electrolyte in intermediate temperature solid oxide fuel cells. There is a vacancy in knowledge respecting to LSO's mechanical properties, and thus they are the scope of research of the present work. Isostatically pressed bars were sintered at temperatures from 1200 °C to 1500 °C. The dependence of Young's modulus with porosity was fitted using three different modeling curves, and extrapolated for a fully dense material. The fitting of these equations give an E0 between 144 GPa and 169 GPa. This is the first time that LSO's Young's modulus is reported. Flexural strength,Vickers hardness, fracture toughness (KIC) from microindentation cracks and nanohardness were also measured. Scanning electron micrography was performed on both a sub-sintered and the most sintered sample, and the microstructure and fracture mechanism were analyzed. In general, the mechanical behaviour is similar to other intermediate temperature solid oxide electrolytes. The fracture mechanism of the most sintered sample makes it well-suited for future SOFC applications. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/164068 |
url |
http://sedici.unlp.edu.ar/handle/10915/164068 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0272-8842 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2018.05.043 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 14348-14354 |
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