Dense fine-grained biphasic calcium phosphate (BCP) bioceramics designed by two-step sintering
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2011
Authors
Lukić, Miodrag J.
Stojanović, Zoran S.

Škapin, Srečo Davor

Maček Kržmanc, Marjeta

Mitrić, Miodrag

Marković, Smilja

Uskoković, Dragan

Article (Published version)

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In this study, dense, fine-grained biphasic calcium phosphate bioceramics were designed via the two-step sintering method. The starting powder was nanosized calcium-deficient hydroxyapatite, whose phase composition, average particle size and morphology were characterized by XRD, FTIR, Raman spectroscopy, laser diffraction and FE-SEM. The phase transformations of the initial powder during heating up to 1200 °C were examined using TG/DSC. At first, conventional sintering was performed and the recorded shrinkage/densification data were used to find out the appropriate experimental conditions for two-step sintering. The obtained results show that two-step sintering yields BCP ceramics, consisting of hydroxyapatite and β-TCP, with full dense, homogeneous structure with average grain size of 375 nm. Furthermore, BCP ceramics obtained by the two-step sintering method exhibit improved mechanical properties, compared to conventionally sintered BCP.
Keywords:
grain growth / microstructure / apatite / two-step sinteringSource:
Journal of the European Ceramic Society, 2011, 31, 1-2, 19-27Publisher:
- Elsevier
Funding / projects:
DOI: 10.1016/j.jeurceramsoc.2010.09.006
ISSN: 0955-2219 (Print); 1873-619X (Online)
WoS: 000284569900004
Scopus: 2-s2.0-78049467024
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Lukić, Miodrag J. AU - Stojanović, Zoran S. AU - Škapin, Srečo Davor AU - Maček Kržmanc, Marjeta AU - Mitrić, Miodrag AU - Marković, Smilja AU - Uskoković, Dragan PY - 2011 UR - https://dais.sanu.ac.rs/123456789/710 AB - In this study, dense, fine-grained biphasic calcium phosphate bioceramics were designed via the two-step sintering method. The starting powder was nanosized calcium-deficient hydroxyapatite, whose phase composition, average particle size and morphology were characterized by XRD, FTIR, Raman spectroscopy, laser diffraction and FE-SEM. The phase transformations of the initial powder during heating up to 1200 °C were examined using TG/DSC. At first, conventional sintering was performed and the recorded shrinkage/densification data were used to find out the appropriate experimental conditions for two-step sintering. The obtained results show that two-step sintering yields BCP ceramics, consisting of hydroxyapatite and β-TCP, with full dense, homogeneous structure with average grain size of 375 nm. Furthermore, BCP ceramics obtained by the two-step sintering method exhibit improved mechanical properties, compared to conventionally sintered BCP. PB - Elsevier T2 - Journal of the European Ceramic Society T1 - Dense fine-grained biphasic calcium phosphate (BCP) bioceramics designed by two-step sintering SP - 19 EP - 27 VL - 31 IS - 1-2 DO - 10.1016/j.jeurceramsoc.2010.09.006 UR - https://hdl.handle.net/21.15107/rcub_dais_710 ER -
@article{ author = "Lukić, Miodrag J. and Stojanović, Zoran S. and Škapin, Srečo Davor and Maček Kržmanc, Marjeta and Mitrić, Miodrag and Marković, Smilja and Uskoković, Dragan", year = "2011", abstract = "In this study, dense, fine-grained biphasic calcium phosphate bioceramics were designed via the two-step sintering method. The starting powder was nanosized calcium-deficient hydroxyapatite, whose phase composition, average particle size and morphology were characterized by XRD, FTIR, Raman spectroscopy, laser diffraction and FE-SEM. The phase transformations of the initial powder during heating up to 1200 °C were examined using TG/DSC. At first, conventional sintering was performed and the recorded shrinkage/densification data were used to find out the appropriate experimental conditions for two-step sintering. The obtained results show that two-step sintering yields BCP ceramics, consisting of hydroxyapatite and β-TCP, with full dense, homogeneous structure with average grain size of 375 nm. Furthermore, BCP ceramics obtained by the two-step sintering method exhibit improved mechanical properties, compared to conventionally sintered BCP.", publisher = "Elsevier", journal = "Journal of the European Ceramic Society", title = "Dense fine-grained biphasic calcium phosphate (BCP) bioceramics designed by two-step sintering", pages = "19-27", volume = "31", number = "1-2", doi = "10.1016/j.jeurceramsoc.2010.09.006", url = "https://hdl.handle.net/21.15107/rcub_dais_710" }
Lukić, M. J., Stojanović, Z. S., Škapin, S. D., Maček Kržmanc, M., Mitrić, M., Marković, S.,& Uskoković, D.. (2011). Dense fine-grained biphasic calcium phosphate (BCP) bioceramics designed by two-step sintering. in Journal of the European Ceramic Society Elsevier., 31(1-2), 19-27. https://doi.org/10.1016/j.jeurceramsoc.2010.09.006 https://hdl.handle.net/21.15107/rcub_dais_710
Lukić MJ, Stojanović ZS, Škapin SD, Maček Kržmanc M, Mitrić M, Marković S, Uskoković D. Dense fine-grained biphasic calcium phosphate (BCP) bioceramics designed by two-step sintering. in Journal of the European Ceramic Society. 2011;31(1-2):19-27. doi:10.1016/j.jeurceramsoc.2010.09.006 https://hdl.handle.net/21.15107/rcub_dais_710 .
Lukić, Miodrag J., Stojanović, Zoran S., Škapin, Srečo Davor, Maček Kržmanc, Marjeta, Mitrić, Miodrag, Marković, Smilja, Uskoković, Dragan, "Dense fine-grained biphasic calcium phosphate (BCP) bioceramics designed by two-step sintering" in Journal of the European Ceramic Society, 31, no. 1-2 (2011):19-27, https://doi.org/10.1016/j.jeurceramsoc.2010.09.006 ., https://hdl.handle.net/21.15107/rcub_dais_710 .