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Specific features of the densification of hydroxyapatite nanopowders upon pressing

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Abstract

In this work we study the pressing and subsequent sintering of hydroxyapatite powders prepared by two methods, i.e., precipitation from aqueous solutions (I) and heterophase synthesis (II). The particle size of powders I and II does not exceed 50 and 100 nm, respectively. In the optimum pressing mode, the relative density of billets reaches 60%. The pressing of powders with preevacuation contributes to the formation of a more homogeneous structure of ceramics. The strength of the ceramics prepared without and with evacuation is 25 ± 1 MPa and 20 ± 1 MPa, respectively; the decrease is attributed to higher open porosity.

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References

  1. S. M. Barinov and V. S. Komlev, Bioceramics Based on Calcium Phosphate (Nauka, Moscow, 2005) [in Russian].

    Google Scholar 

  2. T. J. Webster, C. Ergun, R. H. Doremus, R. W. Siegel, and R. Bizios, “Specific Proteins Mediate Enhanced Osteoblast Adhesion on Nanophase Ceramics,” J. Biomed. Mater. Res. 51, 475–483 (2000).

    Article  CAS  Google Scholar 

  3. T. J. Webster, R. W. Siegel, and R. Bizios, “Osteoblast Adhesion on Nanophase Ceramics,” Biomaterials 20, 1221–1227 (1999).

    Article  CAS  Google Scholar 

  4. I. R. Gibson and W. Bonfield, “Preparation and Characterization of Magnesium/Carbonate co-substituted Hydroxyapatites,” J. Mater. Sci.: Mater. Med. 13, 685–693 (2002).

    Article  CAS  Google Scholar 

  5. I. R. Gibson and W. Bonfield, “Novel Synthesis and Characterization of an AB-Type Carbonate-Substituted Hydroxyapatite,” J. Biomed. Mater. Res. 59, 697–708 (2002).

    Article  CAS  Google Scholar 

  6. E. Landi, A. Tampieri, G. Celotti, and S. Sprio, “Densification Behaviour and Mechanisms of Synthetic Hydroxyapatites,” J. Eur. Ceram. Soc. 20, 2377–2387 (2000).

    Article  CAS  Google Scholar 

  7. A. J. Ruys, M. Wei, C. C. Sorrell, M. R. Dickson, A. Brandwood, and B. K. Milthorpe, “Sintering Effects on the Strength of Hydroxyapatite,” Biomaterials 16, 409–415 (1995).

    Article  CAS  Google Scholar 

  8. K. Uematsu, M. Takagi, T. Honda, N. Uchida, and K. Saito, “Transparent Hydroxyapatite Prepared by Hot Isostatic Pressing of Filter Cake,” J. Am. Ceram. Soc. 72(8), 1476–1478 (1989).

    Article  CAS  Google Scholar 

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Correspondence to M. I. Alymov.

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Original Russian Text © M.I. Alymov, N.V. Bakunova, S.M. Barinov, I.A. Belunik, A.S. Fomin, V.M. Ievlev, S.A. Soldatenko, 2011, published in Rossiiskie Nanotekhnologii, 2011, Vol. 6, Nos. 5–6.

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Alymov, M.I., Bakunova, N.V., Barinov, S.M. et al. Specific features of the densification of hydroxyapatite nanopowders upon pressing. Nanotechnol Russia 6, 353–356 (2011). https://doi.org/10.1134/S1995078011030025

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  • DOI: https://doi.org/10.1134/S1995078011030025

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