Synthesis of ZrO2: ƞ wt% Re2O3 Powders by the Heterogeneous Coprecipitation Technique

R.A. Muñoz; J.E. Rodriguez; Cosme Roberto Moreira Silva

doi:10.4028/www.scientific.net/MSF.727-728.1375

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HomeMaterials Science ForumMaterials Science Forum Vols. 727-728Synthesis of ZrO2: ƞ wt% Re2O3 Powders by the...

Synthesis of ZrO₂: ƞ wt% Re₂O₃ Powders by the Heterogeneous Coprecipitation Technique

Abstract:

The zirconia in its cubic phase (C-ZrO2) has gained scientific and technological interest because it has high ionic conductivity and is useful in applications where the transport of oxygen ions prevails, for example, in the oxygen sensors and solid oxide fuel cells [1,. In the pure zirconia, the Zr4+ ion is too small to sustain the fluorite structure at low temperatures, so it has to be partially replaced by a higher atomic radius cation and lower valence number, for example, the Y3 +, Mg2 +, Ca2 + and the rare earth cations TR3 +, [. Currently there are several synthesis methods used to obtain cubic zirconia, the most popular being the mixture of oxides and coprecipitation used industrially in the research labs, but these methods provide powders with different characteristics which will be decisive for a specific application. In this context, the objective of this study was the preparation of homogeneous mixtures of zirconia-rare earth in different concentrations in order to stabilize the C-ZrO2, using the technique of heterogeneous coprecipitation for potential applications in oxygen sensors.

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Materials Science Forum (Volumes 727-728)

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1375-1380

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https://doi.org/10.4028/www.scientific.net/MSF.727-728.1375

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August 2012

Authors:

R.A. Muñoz, J.E. Rodriguez, Cosme Roberto Moreira Silva

Keywords:

Heterogeneous Coprecipitation, Polymorphs, Rietveld Refinement, Zirconium Oxide

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References

[1] Yi. Liu and L.E. Lao: Solid State Ionics Vol. 177 (2006), p.159.

Google Scholar

[2] I. Kosacki, Ch.M. Rouleau, P.F. Becher, J. Bentley and D.H. Lowndes: Solid State Ionics Vol. 176 (2005), p.1319.

DOI: 10.1016/j.ssi.2005.02.021

Google Scholar

[3] S. Zhuiykov: Electrochemistry of Zirconia Gas Sensors. United States of America: CRC Press Taylor & Francis Group, (2008).

Google Scholar

[4] M.K. Hwang: Desenvolvimento, Caracterização Microestrutural e Mecânica de Cerâmicas de SiC Aditivadas com Alumina e Óxidos de Terras Raras. Doutorado (Tese). São José dos Campos, 2006. Instituto Nacional de Pesquisas Espaciais (INPE). (SP).

DOI: 10.11606/t.97.2016.tde-25022016-095201

Google Scholar

[5] Rodríguez-Páez, J.E., Villaquirán and C.J. Cobo: Materials Research Vol. 4 (4) (2001), 255.

Google Scholar

[6] R.A.M. Meneses: Efeito da Adição de Óxidos de Terras Raras na Condutividade Iônica de Cerâmicas a Base de ZrO2: 3 % Mol Y2O3 para Aplicações em Sensores de Oxigênio. Mestrado (Dissertação). Brasilia, 2010. Universidade de Brasília (UnB/EM). (DF).

DOI: 10.22239/2317-269x.01514

Google Scholar

[7] C. Santos: Cerâmicas de Si3N4 obtidas por prensagem uniaxial à quente utilizando E2O3-AlN ou E2O3-Al2O3 como aditivos: Caracterização microestrutural e resistência à fluência. Doutorado (Tese). Lorena, 2004. Faculdade de Engenharia Química de Lorena (FAENQUIL). (SP).

Google Scholar

[8] T.P. Spasibenko:, Russian J. of Inorg. Cham. Vol. 12 (1979), p.24.

Google Scholar