PHASE STABILIZATION IN NANOCRYSTALLINE ZIRCONIA

    Authors

    S. Shukla;S. Seal

    Abbreviated Journal Title

    Rev. Adv. Mater. Sci.

    Keywords

    Nanoscience & Nanotechnology; Materials Science, Multidisciplinary

    Abstract

    Nanocrystalline as well as submicron-sized tetragonal-zirconia (ZrO2) particles have been successfully synthesized using the sol-gel technique utilizing hydroxypropyl cellulose (HPC) as a polymeric steric stabilizer. The synthesized ZrO2 particles are characterized using transmission electron microscopy (TEM) and x-ray diffraction (XRD) to determine the nanocrystallite size and crystal structure respectively. The ZrO2 particles of size 200-300 nm and 15-20 nm, having tetragonal crystal structure, are obtained under the processing conditions R=5, [HPC]=0.0 g/L and R=30, [HPC]=2.0 g/L respectively. Large R-value and high HPC concentration are observed to be conducive for synthesizing nanocrystalline tetragonal ZrO2 particles. The stabilization of metastable tetragonal phase in nanocrystalline ZrO2 is the result of minimizing the surface energy.

    Journal Title

    Reviews on Advanced Materials Science

    Volume

    5

    Issue/Number

    2

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    117

    Last Page

    120

    WOS Identifier

    WOS:000209082500005

    ISSN

    1606-5131

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