Abstract
In this work, we show how the degree of compaction upon pressing of two hydroxyapatite nanopowders, whose average particle sizes are 18 and 65 nm, influences the density and strength of ceramics on their basis. The density and the flexural strength are found to be higher for a ceramic based on the powder with the particle size of 65 nm at the same density of precursors. The flexural strength of ceramic on its base was 20–25% higher than for ceramic of a powder with the average particle size of 18 nm at the identical density of precursors. The additional hydrostatic pressing increases the densities of specimens by 10–12%. The final hydroxyapatite ceramics are characterized by a fairly high bending density of 170 MPa and homogeneous structure with the average crystallite size of 0.4–0.6 μm.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Barinov, S.M. and Komlev, V.S. The materials based on calcium phosphates for the replacement and reduction of bone tissue, Izv. Vyssh. Uchebn. Zaved., Fiz., 2013, vol. 56, no. 12, pp. 8–13.
Ashworth, J.L., Rhatigan, M., Brammar, R., Sunderland, S., and Leatherbarrow, B., A clinical study of the hydroxyapatite orbital implant, Eur. J. Ophthalmol., 1997, vol. 7, no. 1, pp. 1–8.
Frame, J.W. and Brady, C.L., The versatility of hydroxyapatite blocks in maxillofacial surgery, Br. J. Oral Maxillofac. Surg., 1987, vol. 25, no. 6, pp. 452–464.
Yamashima, T., Reconstruction of surgical skull defects with hydroxyapatite ceramic buttons and granules, Acta Neurochir., 1988, no. 90, pp. 157–162.
Safronova, T.V. and Putlyaev, V.I., Medical inorganic materials science in Russia: calcium phosphate materials, Nanosist.: Fiz., Khim., Matem., 2013, vol. 4, no. 1, pp. 24–47.
Popil’skii, R.Ya. and Pivinskii, Yu.E., Pressovanie poroshkovykh keramicheskikh mass (Pressing of Powder Ceramic Masses), Moscow: Metallurgiya, 1983.
Alymov, M.I., Bakunova, N.V., Barinov, S.M., Belunik, I.A., Fomin, A.S., Ievlev, V.M., and Soldatenko, S.A., Specific features of the densification of hydroxyapatite nanopowders upon pressing, Nanotechnol. Russ., 2011, vol. 6, nos. 5–6, pp. 353–356.
Khasanov, O.L., Dvilis, E.S., and Bikbaeva, Z.G., Metody kompaktirovaniya i konsolidatsii nanostrukturnykh materialov i izdelii (Compacting and Consolidation of Nanostructured Materials and Products), Tomsk: Tomsk. Politekh. Univ., 2008.
De With, G., van Dijk, H.J.A., Hattu, N., and Prijs, K., Preparation, microstructure and mechanical properties of dense polycrystalline hydroxyapatite, J. Mater. Sci., 1981, vol. 16, pp. 1592–1598.
Khasanov, O.L., Ultrasonic pressing of ceramic ultradisperse powders, Izv. Vyssh. Uchebn. Zaved., Fiz., 2000, no. 5, pp. 121–127.
Boltachev, G.Sh. and Bolkov, N.B., Size effect in nanopowder compaction, Tech. Phys. Lett., 2010, vol. 36, no. 9, pp. 823–826.
Bakunova, N.V., Komlev, V.S., Shvorneva, L.I., Fedotov, A.Yu., Fomin, A.S., Barinov, S.M., Ievlev, V.M., Ponomarev, Yu.A., and Soldatenko, S.A., Effect of thermal processing on characteristics of nanopowders of hydroxyapatite, Inorg. Mater.: Appl. Res., 2011, vol. 2, no. 1, pp. 25–30.
Bakunova, N.V., Barinov, S.M., Ievlev, V.M., Komlev, V.S., and Titov, D.D., Effect of thermal treatment on sintering and strength of ceramics from hydroxyapatite nanopowders, Inorg. Mater.: Appl. Res., 2011, vol. 2, no. 4, pp. 377–380.
Barinov, S.M. and Komlev, V.S., Biokeramika na osnove fosfatov kal’tsiya (Calcium Phosphate Bioceramics), Moscow: Nauka, 2005.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © N.V. Petrakova, S.M. Barinov, E.V. Evstratov, M.I. Alymov, A.A. Ashmarin, L.I. Shvorneva, A.A. Egorov, S.V. Kutsev, 2016, published in Materialovedenie, 2016, No. 11, pp. 35–41.
Rights and permissions
About this article
Cite this article
Petrakova, N.V., Barinov, S.M., Evstratov, E.V. et al. Compaction of hydroxyapatite nanopowders by hydrostatic pressing. Inorg. Mater. Appl. Res. 8, 528–534 (2017). https://doi.org/10.1134/S2075113317040190
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2075113317040190