Open AccessФазовый состав, структура и транспортные характеристики кристаллов твердых растворов ZrO-=SUB=-2-=/SUB=--Sc-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=- дополнительно легированных Yb-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-
Author(s) -
М. А. Борик,
Г.М. Кораблёва,
А. В. Кулебякин,
И. Е. Курицына,
Е. Е. Ломонова,
Filipp Milovich,
В. А. Мызина,
Н. Ю. Табачкова
Publication year - 2021
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2021.11.51576.01s
Subject(s) - materials science , crucible (geodemography) , solid solution , conductivity , crystallization , phase (matter) , fluorite , analytical chemistry (journal) , crystal (programming language) , doping , crystallography , chemistry , chemical engineering , metallurgy , chromatography , computational chemistry , optoelectronics , organic chemistry , computer science , engineering , programming language
The effect of the co-doped Yb2O3 on the transport characteristics and stabilization of the cubic phase in solid solutions based on ZrO2−Sc2O3 has been carried out.(ZrO2)1-x-y(Sc2O3)x(Yb2O3)y solid solution crystals, where (x = 0.07-0.09; y = 0.01-0.03), were grown by directional crystallization of the melt in a cold crucible. It is shown that crystals with a cubic fluorite structure were obtained at a total concentration of stabilizing oxides Sc2O3 and Yb2O3 above 10 mol%. Crystals with a total concentration of stabilizing oxides of 10 mol%, having a pseudocubic t'' -phase structure, at a fixed concentration of Sc2O3, have the maximum conductivity. It is shown that an increase in the Yb2O3 concentration in the field of cubic solid solutions leads to a decrease in the conductivity of the crystal. Crystals (ZrO2)0.9(Sc2O3)0.09(Yb2O3)0.01 have the maximum conductivity in the entire temperature range.