Sintering behavior of nanocrystalline ZrO 2 /Y 2 O 3 mixed ceramics analyzed with SANS

Keiderling, U.; Winterer, Markus; Benker, Andreas; Seydel, Johannes; Wiedenmann, A.; Hahn, Horst

doi:10.1016/s1359-6462(01)00768-0

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2006

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“…These methods also work for nanocrystalline materials, e.g. for TiO 2 , 3,4 for zirconia–alumina, 5–7 for zirconia–yttria 8 . The application of dopants and second phases is also common in the processing of porous catalysts in order to retain the large surface areas at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Nanocrystalline Sm₂O₃ and Sm₂O₃–MgO

Sieger

Suffner

Hahn

et al. 2006

Journal of the American Ceramic Society

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Nanocrystalline Sm2O3 and Sm2O3–MgO powders have been prepared by spray pyrolysis of aqueous precursor solutions containing citric acid as a complexant. Synthesized powders consist of hollow spheres with thin shells. The two‐phase samples exhibit an improved microstructural stability compared with pure Sm2O3. The microstructure before and after various heat treatments has been investigated by high‐resolution transmission electron microscopy, scanning electron microscopy, nitrogen adsorption, and X‐ray diffraction.

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Section: Introductionmentioning

confidence: 99%