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Quantification of Chemical Pressure in Doped Nanostructured Zirconia Ceramics

Abstract : The influence of the substitution of Zr4+ by oversized rare-earth R3+ (R ≈ Sc, Yb, Y, Gd, Sm) was investigated in nanocrystalline tetragonal R2O3-doped zirconia (ZrO2) ceramics. Three batches of samples were investigated as a function of various contents of oversized trivalent dopants, i.e., (i) scandia and (ii) ytterbia, and as a function of different dopant ionic radii, for a constant R2O3 content of 3 mol %. Quantification of internal pressure was performed from frequency shifts of Raman spectra and from compressibility data from XRD.
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https://hal.archives-ouvertes.fr/hal-00417993
Contributor : Michel Levy Connect in order to contact the contributor
Submitted on : Thursday, September 17, 2009 - 1:16:01 PM
Last modification on : Tuesday, October 19, 2021 - 11:57:00 AM

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Elisabeth Djurado, Florence Boulc'H, Guilhem Dezanneau, Pierre Bouvier. Quantification of Chemical Pressure in Doped Nanostructured Zirconia Ceramics. Journal of Physical Chemistry B, American Chemical Society, 2003, 107 (33), pp. 8321-8326. ⟨10.1021/jp0341220⟩. ⟨hal-00417993⟩

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