MgAl2O4-ZrO2(Y2O3) Ceramic Composite: Sintering and Characterization

Claudinei dos Santos; Roberto de Oliveira Magnago; Fernando Silva Santos; Samuel Kascher Moraes; Frederico Paula Ribeiro; José Vitor Candido de Souza

doi:10.4028/www.scientific.net/MSF.881.323

Paper Titles

Behavior of Fiberglass Polymer Composites under Ballistic Impact and Quasi-Static Punch Shear Tests
p.300

Development of WC-Fe₃Al Composites by Spark Plasma Sintering Process
p.307

Al₂O₃-YAG Biphasic Composite Phase Determination Using Rietveld Method Measurements
p.313

Study of Stability of Al₂O₃-Y₂O₃-ZrO₂ Composite Ceramics in Crude Petroleum Environment for Inert Coating Applications in Petroleum Industry
p.318

MgAl₂O₄-ZrO₂(Y₂O₃) Ceramic Composite: Sintering and Characterization
p.323

Study of the Substitution of Natural Fine Aggregates by Stone Dust in the Concrete of the Portland Cement
p.331

X-Ray Image Comparison of Wind Turbine Blade Waste and EPS Waste Used as Aggregates in Portland Cement Concrete
p.336

Analysis of Technical Suitability of Using Wood Ash in Cement Based Materials
p.341

Concrete Production of Hot Asphalt Using Recycled Aggregates CDW
p.346

HomeMaterials Science ForumMaterials Science Forum Vol. 881MgAl2O4-ZrO2(Y2O3) Ceramic Composite: Sintering...

MgAl₂O₄-ZrO₂(Y₂O₃) Ceramic Composite: Sintering and Characterization

Abstract:

Spinel is a ceramic material of excellent translucence when sintered in high densification, however, its low sinterability and toughness difficulty limit its use as an interesting material for dental applications. The use of stabilized zirconia ZrO₂(Y₂O₃) as Spinel agent is studied in this work. Zirconia contents between 10% and 50% were mixed to Spinel and samples were uniaxially and isostatically pressed. The specimens were sintered at 1575oC with isothermal holding time of 120 minutes. Samples were characterized by X Ray Diffraction (XRD), SEM, relative density, microhardness and fracture toughness. The samples which showed better mechanical performance were the ones with 50% zirconia and sintered at 1575oC, with 90% relative density, hardness of 400HV and K_IC of 2.4MPa.m^1/2.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 881)

Pages:

323-328

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.881.323

Citation:

Cite this paper

Online since:

November 2016

Authors:

Claudinei dos Santos, Roberto de Oliveira Magnago, Fernando Silva Santos, Samuel Kascher Moraes, Frederico Paula Ribeiro, José Vitor Candido de Souza

Keywords:

Mechanical Properties, MgAl₂O₄-ZrO₂ Composite, Processing

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] L.L. Hench, J. Wilson: An Introduction to Bioceramic. (World Scientific Advanced Series in Ceramics 1 Singapura, 1993).

Google Scholar

[2] K.J. Anusavice: Phillips Science of Dental Materials. (Elsevier 11th Edition UK, 2003).

Google Scholar

[3] J.R. Kelly: Dent. Clin. N. Am. Vol. 48 (2004), p.513.

Google Scholar

[4] T. Vagkopoulous et al.: The European Journal of Esthetic Dentistry Vol. 4 (2) (2009).

Google Scholar

[5] R.G. Craig, J.M. Powers: Materiais Dentários Restauradores. (Editora Santos 11ª ed. São Paulo, 2004).

Google Scholar

[6] R. Stevens: An Introduction to Zirconia: Zirconia and Zirconia Ceramics. (Twickenham Magnesium Electrum 2nd ed. New York, 1986).

Google Scholar

[7] JCPDS - Joint Committee on Powder Diffraction Standard. Inorganic Materials. Pensilvania: International Centre for Diffraction Data Swarthmore. (2004).

Google Scholar

[8] ASTM: C-1327-99, Standard test method for Vickers indentation hardness of advanced ceramics, pp.1-8, (1999).

Google Scholar

[9] ASTM: C-1421-99, Standard test method for determination of fracture toughness of advanced ceramics at ambient temperature, pp.1-32, (1999).

Google Scholar