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Article Dans Une Revue Journal of Physical Chemistry B Année : 2003

Quantification of Chemical Pressure in Doped Nanostructured Zirconia Ceramics

Résumé

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.

Domaines

Matériaux

Dates et versions

hal-00417993 , version 1 (17-09-2009)

Identifiants

Citer

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