Microstructural Analysis of Zinc Niobate Ceramics Processed by Microwave Thermal Treatment

Sergio Luiz Mineiro; Débora Aparecida Cunha Gonçalo; Sayuri Okamoto; Plínio Ivo Gama Tenório

doi:10.4028/www.scientific.net/MSF.1012.185

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HomeMaterials Science ForumMaterials Science Forum Vol. 1012Microstructural Analysis of Zinc Niobate Ceramics...

Microstructural Analysis of Zinc Niobate Ceramics Processed by Microwave Thermal Treatment

Abstract:

In this work are presented analyzes from calcination and sintering of zinc niobate ceramics by microwave processing. In order to obtain minimum processing parameters, the behavior of the material was first studied for the calcination at different temperatures in the range of 450 to 1150°C, with duration time of 10 minutes. The sintering was carried out between 950 and 1050°C. The results showed that the crystalline structure of the calcined and sintered samples was influenced by the temperature, because, according to the increase in temperature, the evolution of the formed crystalline phases was observed and only the Zn₃Nb₂O₈ and ZnNb₂O₆ phases prevailed in the final microstructure. The densification of the sintered ceramics was influenced by the time and temperature of the heat treatment, with lower residual porosity and grain growth with the increase of the sintering temperature in the microwave oven.

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Periodical:

Materials Science Forum (Volume 1012)

Pages:

185-189

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1012.185

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Online since:

October 2020

Authors:

Sergio Luiz Mineiro*, Débora Aparecida Cunha Gonçalo, Sayuri Okamoto, Plínio Ivo Gama Tenório

Keywords:

Calcination, Microstructure, Microwave Heating, X-Ray Diffraction, Zinc Niobate

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References

[1] M.C. Wu, Huang K.T., W.F Su: Materials Chemistry and Physics Vol. 98 (2006), p.406.

Google Scholar

[2] M. Oghbaei, O Mirzaee: Journal of Alloys and Compounds Vol. 494, (2010), p.175.

Google Scholar

[3] P. Amonpattaratkit, A. Ngamjarurojana, S. Ananta: Ceramics International Vol. 39 (2013), p.331.

Google Scholar

[4] S. Astorg, S. Marinel, O. Perez, A. Veres: Journal of the European Ceramic Society Vol. 27 (2007), p.4445.

Google Scholar

[5] M. Birdeau, M. Vaida, E. Fadagar Cosma: Journal of Chemistry Vol. 17 (2015), p.1.

Google Scholar

[6] Y.C. Liou, H.M. Chen, W.C. Tsai: Ceramics International Vol. 35 (2009), p.2135.

Google Scholar

[7] A. Prasatkhetragarn, R. Yimnirun, S. Ananta: Materials Letters Vol. 61 (2007), p.3873.

Google Scholar

[8] L.B. Kong, J. Ma, H. Huang, R.F. Zhang: Journal of Alloys and Compounds Vol. 347 (2002), p.308.

Google Scholar