Evaluation of Hardness and the Fracture Toughness of Composite Biphasic Alumina-YAG

R.F. Cabral; M.H. Prado da Silva; E.S. Lima; J.B. de Campos; Roberto de Oliveira Magnago

doi:10.4028/www.scientific.net/MSF.912.82

Paper Titles

Study of the Addition Effect of Fe₂O₃ and Al₂O₃ Originated from Pectin Citrus in the Glassy Phase on the Microestructural Development and in the Mechanical Characteristics of the Triaxial Ceramics
p.60

Evaluation of the Accelerated Degradation of Mortar in a Ceramic Coating Facade System
p.65

Characterisation of Refractory Ceramic Pressed Body Containing Industrial Waste
p.71

Sol-Gel Synthesis of Amorphous Silica Nanoparticles: Study of the Process Parameters Influence on Structure and Particle Size Distribution
p.77

Evaluation of Hardness and the Fracture Toughness of Composite Biphasic Alumina-YAG
p.82

Assessment of PCM-Impregnated Zeolite as a Matrix for Latent Heat Storage
p.87

Ni-GDC Nanocomposite Material Prepared by Aqueous Based Tape Casting
p.93

Preparation and Characterization of Pb(Zr,Ti)O₃ Obtained by the Pechini Method
p.97

Hysteresis Modeling of Bonded Anisotropic Ferrite Magnets
p.102

HomeMaterials Science ForumMaterials Science Forum Vol. 912Evaluation of Hardness and the Fracture Toughness...

Evaluation of Hardness and the Fracture Toughness of Composite Biphasic Alumina-YAG

Abstract:

Currently the composite two-phase Al₂O₃-YAG laser has been widely exploited by having good properties such as high abrasion resistance and deformation in harsh environments. Thus, one can predict that this material has very attractive applications such as fins of jet engines and gas turbines. In this study, five mixtures were processed Y₂O₃-Al₂O₃-Nb₂O₅, in proportions of 0, 1, 5, 15 and 35 wt% Y₂O₃ and 4% by weight of Nb2O5. These samples were sintered at 1550 to 1650 °C in air where it was detected by X-Ray Diffraction (XRD) with Rietveld refinement training YAG and also two intermediate stages, and AlNbO₄ YNbO₄. Finally they were characterized by hardness by Vickers microindentation and fracture toughness. The highest hardness and fracture toughness were 15 GPa and 5.5 MPa.m^1/2, respectively.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 912)

Pages:

82-86

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.912.82

Citation:

Cite this paper

Online since:

January 2018

Authors:

R.F. Cabral, M.H. Prado da Silva, E.S. Lima, J.B. de Campos, Roberto de Oliveira Magnago

Keywords:

Al₂O₃-YAG, Fracture Toughness, Hardness, Rietveld

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S. Qinglin, X. Changtai: J. Lumin. Vol. 186 (2017), p.68.

Google Scholar

[2] Y. Kai, R. Jian, F. Jingwei, Z. Yin, T. Shunyan, D. Chuanxian: J. Eur. Cer. Soc. Vol. 36 (2016), p.4261.

Google Scholar

[3] Y. Jian-Zheng, Z. Jun, S. Hai-Jun, S. Kan, L. Lin, F. Heng-Zhi: J. Inorg. Mat. Vol. 27 (2012), p.843.

Google Scholar

[4] R. Lach, K. Haberko, M. Bucko, G. Grabowski: Cer. Intern. Vol. 41 (2015), p.10488.

Google Scholar

[5] R. Lach, K. Wojteczko; A. Dudek; Z. Pedzich: J. of The Eur. Cer. Soc. Vol. 4 (2014), p.3373.

Google Scholar

[6] T. Nagira, A. Tomoya, H. Yasuda, F. Hideyuki, B. Sakimura, T. Takumi, H. Yoshida, I. Kentarou: J. of the Eur. Cer. Soc. Vol. 32 (2012), p.2137.

Google Scholar

[7] T. Nagira, H. Yasuda: Mat. Transac. Vol. 53 (2012), p.1124.

Google Scholar

[8] P. Palmero: Nanomat. Vol. 5 (2015), p.656.

Google Scholar

[9] F.J. Paneto, J.L. Pereira, J.O. Lima, E.J. Jesus, L.A. Silva, E.S. Lima, R.F. Cabral, C. Santos: Journal of Refractory Metals and Hard Materials Vol. 48 (2015), p.365.

DOI: 10.1016/j.ijrmhm.2014.09.010

Google Scholar

[10] R.A. Young: The Rietveld Method. (Oxford University Press third ed. USA, 2005).

Google Scholar

[11] M. Abou El Ezz, H.F. El-Maghraby, F. Kern, F. Sommer, M. Awaad, R. Gadow, S.M. Naga: Adv. Applied Cer. Vol. 112 (2013), p.125.

DOI: 10.1179/1743676112y.0000000050

Google Scholar

[12] K.M. Liang, G. Orange, G. Fantozzi: J. Mat. Sc. Vol. 25 (1990), p.207.

Google Scholar

[13] R.F. Cabral, J. B Campos, E.S. Lima: Mat. Sci. For. Vol. 881 (2016), p.313.

Google Scholar