Funct. Mater. 2014; 21 (4): 476-481.
Synthesis of nanocrystalline zirconia-based powder for surgery implants and study of radionuclides content in it
[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.
1. A.S.Vlasov, T.A.Karabanova, Glass and Ceramics, 9-10, 25 (1993).
2. A.V.Shevchenko, A.K.Ruban, E.V.Dudnik, Refract. and Techn. Ceram., 9, 2 (2000).
3. P.F.Manicone, P.R.Iommetti, L.Raffaelli, J. Dentistry, 35, 819 (2007). http://dx.doi.org/10.1016/j.jdent.2007.07.008
4. New Materials, ed. by J.S.Karabasova, MISSIS, Moscow (2002) [in Russian].
5. Zirconium, Zircon, Zirconium Dioxide [Electronic resource] / Access mode: www.URL:// http://www.espadent.ru/index.php/2011-04-19-14-18-22.
6. L.Gremillard, J.Chevalier, T.Epicier et al., J. Eur. Ceram. Soc., 24, 3483 (2004). http://dx.doi.org/10.1016/j.jeurceramsoc.2003.11.025
7. J.Chevalier, L.Gremillard, S.Deville, Annu. Rev. Mater. Res., 37, 1 (2007). http://dx.doi.org/10.1146/annurev.matsci.37.052506.084250
8. G.Maccauro, C.Piconi, W.Burger et al., J. BoneYoint (Br), 86-B, 1192 (2004). http://dx.doi.org/10.1302/0301-620X.86B8.15012
9. A.V.Shevchenko, V.V.Lashneva, E.V.Dudnik et al., Nanosyst., Nanomater., Nanotechnol. Collect. Sci. Papers, 9, 882 (2011).
10. 1996-2001 year. Zirconium Industry in the World, Russia, Kazakhstan and Ukraine [Electronic Resource] /Access Mode: www.URL://http://www.74rif.ru/Cr-2001.html.
11. Zirconium Minerals, Ores and Ore Concentrates [Electronic Resource]/ Access Mode: www. URL: //www.http: //The range of the RF. /publ/stati/mineraly_cirkonija_rudy_i_ rudnye_koncentraty/5-1-0-111.
12. E.V.Dudnik, Powder Metallurgy, 3/4, 146 (2009).
13. A.V.Shevchenko, in: Inorganic Materials Science. Foundations of Materials Science, v.2, Naukova Dumka, Kiev, (2008), p.272.
14. I.A.Leenson, Chemistry and Life, 7, 36 (2009).
15. Information about the Chemical Element "Radiy" [Electronic Resource] / Access Mode:www.URL://:http://www.chemport.ru /elinfo.php?el=88
16. A.A.Moiseev, V.I.Ivanov. Directory for Dosimetry nd Radiation Hygiene, Energoatomizdat, Moscow (1990) [in Russian].
17. International Standard ISO 6872:2008. Dentistry - Ceramic Materials.
18. International Standard ISO 13356:2008. Implants for Surgery - Ceramic Materials based on Yttria-stabilized Tetragonal Zirconia (Y-TZP).