Martensitic Phase Transition in Yttrium-Stabilized ZrO2 Nanopowders by Adsorption of Water

Abstract

The present study was aimed at revealing the influence of the mechanical stress induced by water molecules adsorption on the composition of crystalline phases in the ZrO2–3mol%Y2O3-nanoparticles. Three basic methods have been used to determine the phase transition: neutron diffraction, Raman microspectroscopic scanning, and X-ray diffraction. The fact of phase-structural β → α transformation and the simultaneous presence of two polymorphic structural modifications (β is the phase of the tetragonal syngony and α of monoclinic syngony in nanosized particles (9nm)) under normal physical conditions was established by these methods. Satisfactory consistency was achieved between the results obtained using different techniques.

Hydrogen Generation During Thermal Processes of Water Decomposition on the Surface of Nano-ZrO2+3mol.%Y2O3

“…Nano assistant materials have a made surface and extended distortion ness on the boundary of particles, which is of unimaginable noteworthiness in radiation-heterogeneous shapes with their back, as well as in the midst of the progression of significantly tricky locators of ionizing radiation. To alter physicochemical properties, materials based on the blends of nano-measured oxides are created [16][17][18][19][20][21][22][23][24][25].…”