Dielectric characteristics of black non-stabilized zirconium dioxide ZrO2-x nanopowder synthesized via vacuum-arc deposition
Karpov I.V. Fedorov L.F. Drokin N.A. Pavlov A.V. Goncharova E.A. Lyamkin A.I. Zhilkashinova A.M.
2026Institute of Electrical and Electronics Engineers Inc.
IEEE Transactions on Dielectrics and Electrical Insulation
2026
IIn this study, unstabilized zirconium dioxide (ZrO2-x) nanopowders are synthesized using vacuum arc deposition, and the effect of reaction chamber pressure on their phase composition, morphology, and dielectric properties is comprehensively investigated. X-Ray diffraction and Fourier transform IR spectroscopy reveal that a decrease in pressure increases the tetragonal ZrO2 phase content from 52% to 90% and the concentration of oxygen vacancies. Impedance analysis shows that sample N30 possesses the lowest resistance (~11.5 kOhm) and the best ionic conductivity, due to the high mobility of vacancies. At the same time, sample N90 exhibits pronounced dielectric properties and interfacial polarization. It is shown that varying the synthesis conditions allows for targeted control of the electrical conductivity and polarization properties of ZrO2-x, which opens up prospects for its use as a functional material for solid oxide electrolytes, sensors, and dielectric capacitors.
phase stability , physical vapor deposition , vacuum arc , zirconium oxide
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Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Federal Research Center Krasnoyarsk Scientific Center SB RAS, Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Medical University, Krasnoyarsk, 660022, Russian Federation
Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, 070002, Kazakhstan
Siberian Federal University
Federal Research Center Krasnoyarsk Scientific Center
Federal Research Center Krasnoyarsk Scientific Center SB RAS
Krasnoyarsk State Medical University
Sarsen Amanzholov East Kazakhstan University
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