Infiltrated Spinel-Based Ceramic (MgAl2O4) for Dental Application

Roberto de Oliveira Magnago; Fernanda de Assis Baião Miranda Pereira; Paula Cipriano da Silva; José Vitor Candido de Souza; Claudinei dos Santos

doi:10.4028/www.scientific.net/MSF.881.176

Paper Titles

Synthesis and Characterization of Nanostructured Calcium Phosphates: Colloidal Suspension Rheological Study
p.153

Synthesis and Characterization of a Nanostructured Matrix of Hydrated Calcium Phosphate
p.159

Synthesis and Characterization of a Hydrated Calcium Phosphate Matrix and Biphasic Compositions with MgO and α-Al₂O₃
p.165

Part I - Sinterability of Calcium Phosphate Biomaterials Obtained from Fossilized Calcareous Shells for Biomedical Applications
p.171

Infiltrated Spinel-Based Ceramic (MgAl₂O₄) for Dental Application
p.176

Properties of ZrO₂(Y₂O₃) Used as Metal-Free Dental Restorations
p.181

Production of Single-Phase Hydroxyapatite Porous Bodies from Gypsum/Polystyrene
p.187

Rheological Characterization of Aqueous ZrO₂-Suspension for Additive Manufacturing
p.195

Manufacturing of Green Ceramic Balls: Machine and Process
p.200

HomeMaterials Science ForumMaterials Science Forum Vol. 881Infiltrated Spinel-Based Ceramic (MgAl2O4) for...

Infiltrated Spinel-Based Ceramic (MgAl₂O₄) for Dental Application

Abstract:

This work developed a ceramic material for dental application, spinel-base (MgAl₂O₄), a ceramic material with recognized translucency. Spinel powders were uniaxially pressed at 100 MPa and pre-sintered in order to obtain porous ceramic blocks. The pre-sintered blocks were characterized and indicated 80% of relative density. X-ray diffraction (XRD) only showed MgAl₂O₄ phase. Samples with 15 x 15 x 1 mm were submitted to infiltration using glass rich in lanthanum (La). The products were characterized by scanning electron microscopy (SEM) and mechanical properties, as hardness and fracture toughness. Results were compared to the commercial product VITA-InCeram Spinell. Relative densities exceeding 92%, hardness around 900 HV and high toughness 2.5 MPa.m^1/2 were obtained for both examined systems.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 881)

Pages:

176-180

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.881.176

Citation:

Cite this paper

Online since:

November 2016

Authors:

Roberto de Oliveira Magnago, Fernanda de Assis Baião Miranda Pereira, Paula Cipriano da Silva, José Vitor Candido de Souza, Claudinei dos Santos

Keywords:

Characterization, Dental Materials, Infiltration, Mechanical Properties, Spinel

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] C. Santos, R.C. Souza, A.F. Habibe, L.D. Maeda, M.J.R. Barboza, C.N. Elias: Materials Science and Engineering A Vol. 478 (2008), 257.

Google Scholar

[2] K.J. Anusavice and Phillips: Materiais Dentários. (Elsevier eleventh ed. Brazil, 2005).

Google Scholar

[3] P.C. Silva, C. Santos: Advances in Science and Technology (Online) Vol. 96 (2014), 67.

Google Scholar

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

Google Scholar

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

Google Scholar

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

Google Scholar

[7] G.R. Antis, P. Chantikul, B.R. Lawn, D.B. Marshall: J. Amer. Ceram. Soc. Vol. 64 (9) (1981), 533.

Google Scholar

[8] ASTM: C 6872-543. Flexure Fixture for Dental Ceramics. (1999) 1-65.

Google Scholar