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Information × Registration Number 0211U013213, 0111U003140 , R & D reports Title Engineering of oxide nanoparticles surface with the use of extreme conditions for forming of structure and properties of ceramic and composite functional materials. The complex investigation of nanoparticles surface forming and nanoparticles interaction in complex composite systems under extremal actions. popup.stage_title Head Konstantinova Tatyana Yevgenivna, Registration Date 11-01-2012 Organization Donetsk Institute of Physics @ Engineering named after O.O.Galkin NAS of Ukraine popup.description2 The nature of nanoparticles with different size, degree of doping and surface state behavior under high hydrostatic pressure is investigated. It is shown that the stability of the martensitic tetragonal to monoclinic transition in doped yttrium zirconia under high pressure is determined not only by the amount of the dopant, but also by the nanoparticles surface state. It is shown that the latter depends on the annealing temperature of the powder. In the framework of quasi-isotropic approach to the surface tension description the free energy nanoparticles surface is estimated in metastable tetragonal state, which formed under different temperatures, and its variation under pressure (100-1000 MPa). The effect of dopant concentration influence on the dynamics of nanoparticles surface state change under temperature and pressure conditions is investigated. Based on these results surface free energy Gs(P, T) is constructed. Product Description popup.authors Брюханова І.І. Волкова Г.К. Глазунова В.О. Головань Г.Н. Горбань О.О. Горбань С.В. Даніленко І.А. Дорошкевич О.С. Константінова Т.Є. Лоладзе Л.В. Лубенець В.А. Носолев І.К. Перекрестова Л.Д. Прохоренко С.В. Саприкіна О.В. Синякіна С.А. Ткаченко А.М. Токій В.В. Трченко Є.О. Шило А.В. popup.nrat_date 2020-04-02 Close