Reduced activation energy for grain growth in nanocrystalline yttria-stabilized zirconia

    Authors

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

    Abbreviated Journal Title

    Nano Lett.

    Keywords

    LOW-TEMPERATURE; CERAMICS; NANOPARTICLES; POWDERS; OXIDE; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &; Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

    Abstract

    Nanocrystalline (similar to15-20 nm) 3 mol % yttria-stabilized zirconia (3YSZ) powder is synthesized via sol-gel technique. A reduced activation energy value of similar to13.0 +/- 0.9 kJ/mol is observed for grain growth in nano-3YSZ powder, within the calcination temperature range of 400-1200 degreesC, which is much lower than that (580 kJ/mol) reported for submicron/micron-sized 3YSZ. This is attributed to large oxygen-ion vacancy concentration in nano-3YSZ.

    Journal Title

    Nano Letters

    Volume

    3

    Issue/Number

    3

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    397

    Last Page

    401

    WOS Identifier

    WOS:000181586600024

    ISSN

    1530-6984

    Share

    COinS