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3YTZP-Al2O3 Powders Synthesized by the Coprecipitation Route

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Abstract:

The addition of alumina in a zirconia stabilized in a tetragonal phase matrix enhances ceramic hardness and inhibits the tetragonal → monoclinic phase transformation of zirconia when exposed to an aqueous environment. These characteristics are important for applications such as bioceramics and structural materials. For these purposes, the strict control of powder synthesis and the processing conditions are vital to tailor the ceramic characteristics. This work evaluates the influence of 20 wt% alumina in a Y-TZP matrix on powder characteristics, obtained by coprecipitation route, and calcined from 600 to 1200°C for 1 and 3 hours. The powders obtained were characterized by X-ray diffraction, scanning electronic microscopy, laser diffraction and gaseous adsorption (BET). The results reveal that presence of Al3+ inhibits the crystallization of composite at lower temperatures.

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Periodical:

Materials Science Forum (Volumes 530-531)

Pages:

677-682

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.530-531.677

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Online since:

November 2006

Authors:

R.H.L. Garcia, Valter Ussui, Nelson B. Lima, Dolores Ribeiro Ricci Lazar

Keywords:

Aluminum (Al), Composite, Coprecipitation, Synthesis, Y-TZP

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] D. J. Green; R. H .J. Hannink; M. V. Swain, Transformation toughening of ceramics. Boca Raton, Fla: CRC, (1989).

Google Scholar

[2] M. Szutkowska, J. Mater. Process. Technol. 153-154 (2004), pp.868-874.

Google Scholar

[3] C. A. Fortulan, D. P. F. Souza, Mater. Res. 2 (3) (1999), pp.205-210.

Google Scholar

[4] D. D. Upadhyaya, M. R. Gonal, R. Prasad, Mater. Sci. Eng. A 270 (1999), pp.133-136.

Google Scholar

[5] J. L. Shi, J. H. Gao, B. S. Li, T. S. J. Yen, J. Eur. Ceram. Soc. 15 (1995), pp.967-973.

Google Scholar

[6] A. Marti, Int. J. Care Injured 31 (2000), p. S-D-33-36.

Google Scholar

[7] S. Deville, J. Chevalier, G. Fantozzi, J. F. Bartolomé, J. Requena, J. S. Moya, R. Torrecillas, L. A. Díaz. J. Eur. Ceram. Soc. 23 (2003), pp.2975-2982.

Google Scholar

[8] J. S. Hong, S. D. De la Torre, K. Miyamoto, H. Miyamoto, L. Gao, Mater. Lett. 37 (1998), pp.6-9.

Google Scholar

[9] S. R. Choi, N. P. Bansal, Ceram. Int. 31 (2005), pp.39-46.

Google Scholar

[10] J. L. Shi, B. S. Li, M. L. Ruan, T. S. J. Yen, J. Eur. Ceram. Soc. 15 (1995), pp.959-965.

Google Scholar

[11] S. Nakajima, S. Shimada, Solid State Ionics 101-103 (1997), pp.131-135.

Google Scholar

[12] S. Bhaduri, S. B. Bhaduri, Nanostruct. Mater. 8 (6) (1997), pp.755-763.

Google Scholar

[13] A. Cui, K. Itatani, Key Eng. Mater., 247, (2003), pp.183-185.

Google Scholar

[14] J.M. Dominguez, J.L. Hernandez, G. Sandoval, App. Catal., A 197 (2000), pp.119-130.

Google Scholar

[15] M. S. Kaliszewski, A. H. Heuer, J. Am. Ceram Soc. 73 (6) (1990), pp.1504-1509.

Google Scholar

[16] D. R. R. Lazar, C.A.B. Menezes, V. Ussui, E. Fancio, N. B. Lima, A. H. A. Bressiani, J.O.A. Paschoal, Mater. Sci. Forum, 416-418 (2003), p.555.

DOI: 10.4028/www.scientific.net/msf.416-418.555

Google Scholar