M. Yu. Arsent’ev, P. A. Tikhonov*, M. V. Kalinina, and N. S. Andreeva
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences,
nab. Admirala Makarova 2, St. Petersburg, 199034 Russia
*e-mail: tikhonov_p-a@mail.ru
Received December 3, 2009
Abstract—Precursor powders in the ZrO2–CeO2–Sc2O3–Al2O3 system have been prepared using the sol–gel
method. A physicochemical analysis of the synthesized ceramics, single crystals, and nanofilms based on ZrO2
and HfO2 oxides has been performed. It has been revealed that the introduction of alumina Al2O3 into the ZrO2-
based ceramic samples reduces the thermal expansion coefficient and that these ceramic materials possess a
high electrical conductivity as compared to the other materials under investigation.
Key words: ceramics, films, electrical conductivity, thermal expansion
DOI: 10.1134/S1087659610040127
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