Dense and Cellular Zirconia Produced by Gel Casting with Agar: Preparation and High Temperature Characterization
Joint Authors
Tulliani, Jean-Marc
Bemporad, Edoardo
Sebastiani, Marco
Pulci, Giovanni
Tirillò, Jacopo
Bartuli, Cecilia
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
A modified gel-casting process was developed to produce both dense and highly porous (40% volume) yttria tetragonal zirconia polycrystal (Y-TZP) using agar, a natural polysaccharide, as gelling agent.
A fugitive phase, made of commercial polyethylene spheres, was added to the ceramic suspension before gelling to produce cellular ceramic structures.
The characterization of the microstructural features of both dense and cellular ceramics was carried out by FEG SEM analysis of cross-sections produced by focused ion beam.
The mechanical properties of the components were characterized at room temperature by nanoindentation tests in continuous stiffness measurement mode, by investigating the direct effect of the presence of residual microporosity.
The presence of a diffuse residual microporosity from incomplete gel deaeration resulted in a decay of the bending strength and of the elastic modulus.
The mechanical behavior of both dense and cellular zirconia (in terms of elastic modulus, flexural strength, and deformation at rupture) was investigated by performing four-point bending tests at the temperature of 1500°C.
American Psychological Association (APA)
Tulliani, Jean-Marc& Bemporad, Edoardo& Sebastiani, Marco& Pulci, Giovanni& Tirillò, Jacopo& Bartuli, Cecilia. 2013. Dense and Cellular Zirconia Produced by Gel Casting with Agar: Preparation and High Temperature Characterization. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1007211
Modern Language Association (MLA)
Tulliani, Jean-Marc…[et al.]. Dense and Cellular Zirconia Produced by Gel Casting with Agar: Preparation and High Temperature Characterization. Journal of Nanomaterials No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1007211
American Medical Association (AMA)
Tulliani, Jean-Marc& Bemporad, Edoardo& Sebastiani, Marco& Pulci, Giovanni& Tirillò, Jacopo& Bartuli, Cecilia. Dense and Cellular Zirconia Produced by Gel Casting with Agar: Preparation and High Temperature Characterization. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1007211
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1007211