Effect of nanocrystallite morphology on the metastable tetragonal phase stabilization in zirconia

    Authors

    S. Shukla; S. Seal; R. Vij; S. Bandyopadhyay;Z. Rahman

    Abbreviated Journal Title

    Nano Lett.

    Keywords

    Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &; Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

    Abstract

    We synthesize, for the first time, using sol-gel technique and without doping any trivalent impurities, monodispersed, spherical ZrO2 particles in size range of similar to500-600 nm, exhibiting metastable tetragonal crystal structure at room temperature. It is revealed using high-resolution transmission electron microscopy that "hard-aggregates" forming tendency of ZrO2 nanocrystallites of size similar to45 nm is responsible for stabilizing the high-temperature metastable tetragonal phase, at room temperature, within large sized (similar to500-600 nm) undoped ZrO2 particles.

    Journal Title

    Nano Letters

    Volume

    2

    Issue/Number

    9

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    989

    Last Page

    993

    WOS Identifier

    WOS:000178010900017

    ISSN

    1530-6984

    Share

    COinS