Thermodynamic tetragonal phase stability in sol-gel derived nanodomains of pure zirconia

    Authors

    S. Shukla;S. Seal

    Comments

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    Abbreviated Journal Title

    J. Phys. Chem. B

    Keywords

    ZRO2; TRANSFORMATION; STABILIZATION; MICROCRYSTALS; SUPPORT; Chemistry, Physical

    Abstract

    Nanocrystalline (15-30 nm) and submicron-sized (500-600 nm) zirconia (ZrO2) particles are synthesized using the sol-gel technique. The metastable tetragonal phase is stabilized at room temperature within pure ZrO2 nanodomains of size 15-45 nm having nonspherical morphology. Using thermodynamic analysis, it is revealed that the critical nanosize for tetragonal phase stabilization, at room temperature, may vary depending on the contribution from the surface, interfacial, and strain energies, which determine the size and the shape of the tetragonal nanodomains.

    Journal Title

    Journal of Physical Chemistry B

    Volume

    108

    Issue/Number

    11

    Publication Date

    1-1-2004

    Document Type

    Letter

    Language

    English

    First Page

    3395

    Last Page

    3399

    WOS Identifier

    WOS:000220268200006

    ISSN

    1520-6106

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