Effect of nanocrystallite morphology on the metastable tetragonal phase stabilization in zirconia
Abbreviated Journal Title
Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &; Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
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.
"Effect of nanocrystallite morphology on the metastable tetragonal phase stabilization in zirconia" (2002). Faculty Bibliography 2000s. 3474.