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Extrusion of ceramic emulsions: Plastic behavior
https://orcid.org/0000-0003-3274-4832
https://orcid.org/0000-0003-4595-3641
Abstract This paper presents the plastic characterization of several extruded ceramic emulsions prepared by emulsification of different ceramic suspensions: i) red clay, ii) kaolin and iii) alumina, which were performed in order to obtain some insights to upscale the ceramic emulsion extrusion process. Stress-deformation curves obtained by compression of the pre-extruded bodies were used to obtain the plasticity characterization of the emulsions with different water contents. Deformation amplitude, yield stress and rupture stress revealed the most sensitive parameters, thus giving valuable information about the plastic behavior of the ceramic emulsions, as well as important guidelines for extrusion upscale. The microstructural features of the sintered bodies were kept constants even after the extrusion process, making this process be feasible for large-scale production of cellular ceramic bodies.
Highlights Prepared ceramic emulsions can be extruded, due to the solidification of organic phase. Microstructural features were kept constant after sintering and extrusion process. Plastic behavior of ceramic emulsions is similar than traditional ceramics.
Extrusion of ceramic emulsions: Plastic behavior
https://orcid.org/0000-0003-3274-4832
https://orcid.org/0000-0003-4595-3641
Abstract This paper presents the plastic characterization of several extruded ceramic emulsions prepared by emulsification of different ceramic suspensions: i) red clay, ii) kaolin and iii) alumina, which were performed in order to obtain some insights to upscale the ceramic emulsion extrusion process. Stress-deformation curves obtained by compression of the pre-extruded bodies were used to obtain the plasticity characterization of the emulsions with different water contents. Deformation amplitude, yield stress and rupture stress revealed the most sensitive parameters, thus giving valuable information about the plastic behavior of the ceramic emulsions, as well as important guidelines for extrusion upscale. The microstructural features of the sintered bodies were kept constants even after the extrusion process, making this process be feasible for large-scale production of cellular ceramic bodies.
Highlights Prepared ceramic emulsions can be extruded, due to the solidification of organic phase. Microstructural features were kept constant after sintering and extrusion process. Plastic behavior of ceramic emulsions is similar than traditional ceramics.
Extrusion of ceramic emulsions: Plastic behavior
https://orcid.org/0000-0003-3274-4832
https://orcid.org/0000-0003-4595-3641
Abstract This paper presents the plastic characterization of several extruded ceramic emulsions prepared by emulsification of different ceramic suspensions: i) red clay, ii) kaolin and iii) alumina, which were performed in order to obtain some insights to upscale the ceramic emulsion extrusion process. Stress-deformation curves obtained by compression of the pre-extruded bodies were used to obtain the plasticity characterization of the emulsions with different water contents. Deformation amplitude, yield stress and rupture stress revealed the most sensitive parameters, thus giving valuable information about the plastic behavior of the ceramic emulsions, as well as important guidelines for extrusion upscale. The microstructural features of the sintered bodies were kept constants even after the extrusion process, making this process be feasible for large-scale production of cellular ceramic bodies.
Highlights Prepared ceramic emulsions can be extruded, due to the solidification of organic phase. Microstructural features were kept constant after sintering and extrusion process. Plastic behavior of ceramic emulsions is similar than traditional ceramics.
Extrusion of ceramic emulsions: Plastic behavior
Vitorino, N. (author) / Freitas, C. (author) / Ribeiro, M.J. (author) / Abrantes, J.C.C. (author) / Frade, J.R. (author)
Applied Clay Science ; 101 ; 315-319
2014-08-15
5 pages
Article (Journal)
Electronic Resource
English
Plasticity , Ceramic emulsions , Extrusion , Red clay , Kaolin , Alumina
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