Funct. Mater. 2014; 21 (4): 476-481.

Synthesis of nanocrystalline zirconia-based powder for surgery implants and study of radionuclides content in it

A.V.Shevchenko[1] , V.V.Lashneva[1], V.A.Dubok[1], E.V.Dudnik[1], V.V.Tsukrenko[1], A.K.Ruban[1], V.V.Trishin[2], I.A.Malyuk[2]

[1] I.Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovsky Str., 03680 Kiev, Ukraine
[2] Institute for Nuclear Research, National Academy of Sciences of Ukraine, 47 Nauky Ave., 03680 Kiev, Ukraine


Nanocrystalline powder of ZrO2 (5 % Y2O3, 3 % CeO2) has been synthesized. The powder is developed for manufacture of ceramic implants for bone surgery. Physico-chemical properties of the powder and its radioactivity have been examined. It is shown that the proposed technology allows to produce the nanocrystalline ZrO2 based powder of high chemical purity and high activity for sintering. Ceramics made of the powder provides the high reliability and assures long term service in the aggressive environment of a living organism. The specific radioactivity of the powder is (1.3 ± 0.4) Bq/kg and is caused by the presence in the powder of natural radionuclide 226Ra. Radioactivity of the synthesized powder is more than 100 times below the norm accepted by the international standards for ceramic materials based on T-ZrO2 for surgical implants.


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