Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure
- Autores
- Serra, María Florencia; Conconi, María Susana; Gauna, M. A.; Suárez, Gustavo; Aglietti, Esteban Fausto; Rendtorff Birrer, Nicolás Maximiliano
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The use of industrial waste (by-products) as raw materials in the ceramic industry has been under study for decades due to the economical, energy, tax and environmental advantages. The specificity of the waste requires a basic characterization and technology thereof.The applicability of rice husk ash (RHA), as silica (SiO 2) source, in refractory and porous materials with potential structural, insulating and/or filtering applications was carried out by characterizing the ceramic behavior of stoichiometric mixtures of calcined alumina (Al2O3) and RHA. A reaction-sintering framework can be defined in the (3Al2O3·2SiO2) system. The sinterability and conversion during the reaction sintering processes were studied in order to obtain mullite (3Al2O3·2SiO2) ceramics. Also some microstructural features of the developed materials were studied in the 1100-1600 °C range. The mullitization was studied quantitatively.Partial densification was achieved (30%) and highly converted materials were obtained. The developed microstructure consisted in a dense ceramic matrix with homogenous interconnected porosity, with a narrow pore size distribution below 20 μm. The developed material gives enough information for designing mullite ceramics materials with either porous or dense microstructures with structural, insulating or filtering applications employing RHA as silica source and calcined alumina as the only other raw material.
Facultad de Ciencias Exactas
Centro de Tecnología de Recursos Minerales y Cerámica - Materia
-
Ciencias Exactas
Mullite
Mullite processing
Nontraditional raw materials
Porous ceramics
Properties
Refractory materials
Rice husk
Rice husk ash - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/87068
Ver los metadatos del registro completo
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Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructureSerra, María FlorenciaConconi, María SusanaGauna, M. A.Suárez, GustavoAglietti, Esteban FaustoRendtorff Birrer, Nicolás MaximilianoCiencias ExactasMulliteMullite processingNontraditional raw materialsPorous ceramicsPropertiesRefractory materialsRice huskRice husk ashThe use of industrial waste (by-products) as raw materials in the ceramic industry has been under study for decades due to the economical, energy, tax and environmental advantages. The specificity of the waste requires a basic characterization and technology thereof.The applicability of rice husk ash (RHA), as silica (SiO <SUB>2</SUB>) source, in refractory and porous materials with potential structural, insulating and/or filtering applications was carried out by characterizing the ceramic behavior of stoichiometric mixtures of calcined alumina (Al<SUB>2</SUB>O<SUB>3</SUB>) and RHA. A reaction-sintering framework can be defined in the (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) system. The sinterability and conversion during the reaction sintering processes were studied in order to obtain mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics. Also some microstructural features of the developed materials were studied in the 1100-1600 °C range. The mullitization was studied quantitatively.Partial densification was achieved (30%) and highly converted materials were obtained. The developed microstructure consisted in a dense ceramic matrix with homogenous interconnected porosity, with a narrow pore size distribution below 20 μm. The developed material gives enough information for designing mullite ceramics materials with either porous or dense microstructures with structural, insulating or filtering applications employing RHA as silica source and calcined alumina as the only other raw material.Facultad de Ciencias ExactasCentro de Tecnología de Recursos Minerales y Cerámica2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf61-67http://sedici.unlp.edu.ar/handle/10915/87068enginfo:eu-repo/semantics/altIdentifier/issn/2187-0764info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jascer.2015.11.003info: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:UNLP2025-09-29T11:16:49Zoai:sedici.unlp.edu.ar:10915/87068Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:49.427SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| title |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| spellingShingle |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure Serra, María Florencia Ciencias Exactas Mullite Mullite processing Nontraditional raw materials Porous ceramics Properties Refractory materials Rice husk Rice husk ash |
| title_short |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| title_full |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| title_fullStr |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| title_full_unstemmed |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| title_sort |
Mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics obtained by reaction sintering of rice husk ash and alumina, phase evolution, sintering and microstructure |
| dc.creator.none.fl_str_mv |
Serra, María Florencia Conconi, María Susana Gauna, M. A. Suárez, Gustavo Aglietti, Esteban Fausto Rendtorff Birrer, Nicolás Maximiliano |
| author |
Serra, María Florencia |
| author_facet |
Serra, María Florencia Conconi, María Susana Gauna, M. A. Suárez, Gustavo Aglietti, Esteban Fausto Rendtorff Birrer, Nicolás Maximiliano |
| author_role |
author |
| author2 |
Conconi, María Susana Gauna, M. A. Suárez, Gustavo Aglietti, Esteban Fausto Rendtorff Birrer, Nicolás Maximiliano |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Mullite Mullite processing Nontraditional raw materials Porous ceramics Properties Refractory materials Rice husk Rice husk ash |
| topic |
Ciencias Exactas Mullite Mullite processing Nontraditional raw materials Porous ceramics Properties Refractory materials Rice husk Rice husk ash |
| dc.description.none.fl_txt_mv |
The use of industrial waste (by-products) as raw materials in the ceramic industry has been under study for decades due to the economical, energy, tax and environmental advantages. The specificity of the waste requires a basic characterization and technology thereof.The applicability of rice husk ash (RHA), as silica (SiO <SUB>2</SUB>) source, in refractory and porous materials with potential structural, insulating and/or filtering applications was carried out by characterizing the ceramic behavior of stoichiometric mixtures of calcined alumina (Al<SUB>2</SUB>O<SUB>3</SUB>) and RHA. A reaction-sintering framework can be defined in the (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) system. The sinterability and conversion during the reaction sintering processes were studied in order to obtain mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics. Also some microstructural features of the developed materials were studied in the 1100-1600 °C range. The mullitization was studied quantitatively.Partial densification was achieved (30%) and highly converted materials were obtained. The developed microstructure consisted in a dense ceramic matrix with homogenous interconnected porosity, with a narrow pore size distribution below 20 μm. The developed material gives enough information for designing mullite ceramics materials with either porous or dense microstructures with structural, insulating or filtering applications employing RHA as silica source and calcined alumina as the only other raw material. Facultad de Ciencias Exactas Centro de Tecnología de Recursos Minerales y Cerámica |
| description |
The use of industrial waste (by-products) as raw materials in the ceramic industry has been under study for decades due to the economical, energy, tax and environmental advantages. The specificity of the waste requires a basic characterization and technology thereof.The applicability of rice husk ash (RHA), as silica (SiO <SUB>2</SUB>) source, in refractory and porous materials with potential structural, insulating and/or filtering applications was carried out by characterizing the ceramic behavior of stoichiometric mixtures of calcined alumina (Al<SUB>2</SUB>O<SUB>3</SUB>) and RHA. A reaction-sintering framework can be defined in the (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) system. The sinterability and conversion during the reaction sintering processes were studied in order to obtain mullite (3Al<SUB>2</SUB>O<SUB>3</SUB>·2SiO<SUB>2</SUB>) ceramics. Also some microstructural features of the developed materials were studied in the 1100-1600 °C range. The mullitization was studied quantitatively.Partial densification was achieved (30%) and highly converted materials were obtained. The developed microstructure consisted in a dense ceramic matrix with homogenous interconnected porosity, with a narrow pore size distribution below 20 μm. The developed material gives enough information for designing mullite ceramics materials with either porous or dense microstructures with structural, insulating or filtering applications employing RHA as silica source and calcined alumina as the only other raw material. |
| publishDate |
2016 |
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2016 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/87068 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/2187-0764 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jascer.2015.11.003 |
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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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