Reversible Martensitic Phase Transition in Yttrium-Stabilized ZrO<sub>2</sub> Nanopowders by Adsorption of Water
Elmar B. Asgerov,
Anatoly I. Beskrovnyy,
Nelya V. Doroshkevich,
Carmen Mita,
Diana M. Mardare,
Dan Chicea,
Mihaela D. Lazar,
Alisa A. Tatarinova,
Sergiy I. Lyubchyk,
Svitlana B. Lyubchyk,
Andriy I. Lyubchyk,
Alexander S. Doroshkevich
Affiliations
Elmar B. Asgerov
Joint Institute for Nuclear Research, 141980 Dubna, Russia
Anatoly I. Beskrovnyy
Joint Institute for Nuclear Research, 141980 Dubna, Russia
Nelya V. Doroshkevich
Joint Institute for Nuclear Research, 141980 Dubna, Russia
Carmen Mita
Faculty of Physics, Alexandru Ioan Cuza University of Iasi, Bulevardul Carol I nr. 11, 700506 Iași, Romania
Diana M. Mardare
Faculty of Physics, Alexandru Ioan Cuza University of Iasi, Bulevardul Carol I nr. 11, 700506 Iași, Romania
Dan Chicea
Research Center for Complex Physical Systems, Faculty of Sciences, “Lucian Blaga” University of Sibiu, Dr. Ion Ratiu str. no. 5–7, 550012 Sibiu, Romania
Mihaela D. Lazar
National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
Alisa A. Tatarinova
Joint Institute for Nuclear Research, 141980 Dubna, Russia
Sergiy I. Lyubchyk
REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quina de Torre, 2829-516 Caparica, Portugal
Svitlana B. Lyubchyk
REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quina de Torre, 2829-516 Caparica, Portugal
Andriy I. Lyubchyk
Research Centre in Industrial Engineering Management and Sustainability, Lusófona University, Campo Grande, 376, 1749-024 Lisboa, Portugal
Alexander S. Doroshkevich
Joint Institute for Nuclear Research, 141980 Dubna, Russia
The present study was aimed at revealing the influence of the mechanical stress induced by water molecule adsorption on the composition of crystalline phases in the ZrO2 + 3 mol% Y2O3-nanoparticles. Three basic methods were used to determine the phase transition: neutron diffraction, Raman microspectroscopic scanning, and X-ray diffraction. The fact of reversible 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 (9 nm)) under normal physical conditions was established by these methods. An assumption was made regarding the connection of the physical mechanism of transformation of the extremely nonequilibrium surface of nanoparticles with electronic exchange of the material of the near-surface layer of nanoparticles with the adsorption layer through donor–acceptor interaction. The principal possibility of creating direct-acting hydroelectric converters based on nanoscale YSZ (Yttria-Stabilized Zirconia) systems due to the reversible character of the considered effect was shown.
