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.
TY - 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
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.
Journal of the European Ceramic Society
Elsevier., 31(1-2), 19-27.
https://doi.org/10.1016/j.jeurceramsoc.2010.09.006
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. Journal of the European Ceramic Society. 2011;31(1-2):19-27.
doi:10.1016/j.jeurceramsoc.2010.09.006.
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" Journal of the European Ceramic Society, 31, no. 1-2 (2011):19-27,
https://doi.org/10.1016/j.jeurceramsoc.2010.09.006 .
