Synthesis of Nanocrystalline Zirconium Dioxide Stabilized
with Yttrium Oxide for Low-Temperature Sintering

V. B. Kul’met’eva*, S. E. Porozova*, and E. S. Gnedina

Research Center of Powder Materials Science, Perm State Technical University,
ul. Professora Pozdeeva 6, Perm, 614013 Russia

*e-mail: keramik@pm.pstu.ac.ru

Abstract—Technology for the synthesis of nanocrystalline zirconium dioxide powder stabilized with yttrium
oxide by joint deposition is developed. This technology makes it possible to sinter ceramics based on this pow-
der at temperatures below 1400C. Characteristics of the zirconia powder (depending on the synthesis condi-
tions) are investigated using X-ray diffraction, the thermal desorption of nitrogen, and electron microscopy. It
is revealed that the ultrasonic (US) effect achieved when washing the gel-like powder, as well as crushing the
powder after drying and calcination, make it possible to decrease the degree of its agglomeration and decrease
the agglomerate size. It is established based on the data of the thermochemical analysis that a decrease in the
heating rate to the isothermal holding temperature during synthesis can decrease the liability of the ceramics
made from the nanocrystalline zirconia powder to zonal sintering.

Keywords: zirconia, chemical synthesis, nanopowders, zirconium ceramics, low-temperature sintering

DOI: 10.3103/S1067821213030097

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