Effect of Nanocrystallite Morphology on the Metastable Tetragonal Phase Stabilization in Zirconia
Year: 2002
Type: article
Abstract: We synthesize, for the first time, using sol−gel technique and without doping any trivalent impurities, monodispersed, spherical ZrO 2 particles in size range of ∼500−600 nm, exhibiting metastable tetragonal crystal structure at room temperature. It is revealed using high-resolution transmission electron microscopy that “hard-aggregates” forming tendency of ZrO 2 nanocrystallites of size ∼45 nm is responsible for stabilizing the high-temperature metastable tetragonal phase, at room temperature, within large sized (∼500−600 nm) undoped ZrO 2 particles.
Source: Nano Letters
DOI: 10.1021/nl025660b
Institutions: University of Central Florida, UNSW Sydney
Language: English
Subfield: Ceramics and Composites
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2061667707