The aim of this work is the investigation of alpha-tricalcium-phosphate (alpha-TCP) formation from calcium-deficient hydroxyapatite (CDHAP), synthesized by hydrothermal method from CaCl2, EDTA, NaH2PO4 center dot 2H(2)O and urea as precursors at 160 degrees C. Further, the influence of Ca/P ratios in the starting solution on alpha-TCP formation and the settings of obtained cements in simulated body fluid (SBF) were investigated. According to the results of X-ray, FTIR and SEM analyses, it is shown that CDHAP is transformed to beta-TCP at 800 degrees C, and to alpha-TCP at 1200 degrees C. Almost complete transformation of CDHAP into alpha-TCP occur after heating at 1500 degrees C in the case when Ca/P ratio in starting solution was 1,42. Cement powder mixed with the cement liquid (2.5 wt.% solution of Na2HPO4) completely hydrolyzes after 7 days in SBF, forming only CDHAP phase.
TY - JOUR
AU - Jokić, Bojan M.
AU - Janković-Častvan, Ivona
AU - Veljović, Đorđe N.
AU - Bučevac, Dušan
AU - Obradović-Đuričić, K.
AU - Petrović, R.
AU - Janaćković, Đorđe T.
PY - 2007
UR - https://vinar.vin.bg.ac.rs/handle/123456789/2574
AB - The aim of this work is the investigation of alpha-tricalcium-phosphate (alpha-TCP) formation from calcium-deficient hydroxyapatite (CDHAP), synthesized by hydrothermal method from CaCl2, EDTA, NaH2PO4 center dot 2H(2)O and urea as precursors at 160 degrees C. Further, the influence of Ca/P ratios in the starting solution on alpha-TCP formation and the settings of obtained cements in simulated body fluid (SBF) were investigated. According to the results of X-ray, FTIR and SEM analyses, it is shown that CDHAP is transformed to beta-TCP at 800 degrees C, and to alpha-TCP at 1200 degrees C. Almost complete transformation of CDHAP into alpha-TCP occur after heating at 1500 degrees C in the case when Ca/P ratio in starting solution was 1,42. Cement powder mixed with the cement liquid (2.5 wt.% solution of Na2HPO4) completely hydrolyzes after 7 days in SBF, forming only CDHAP phase.
T2 - Journal of Optoelectronics and Advanced Materials
T1 - Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method
VL - 9
IS - 6
SP - 1904
EP - 1910
UR - https://hdl.handle.net/21.15107/rcub_vinar_2574
ER -
@article{
author = "Jokić, Bojan M. and Janković-Častvan, Ivona and Veljović, Đorđe N. and Bučevac, Dušan and Obradović-Đuričić, K. and Petrović, R. and Janaćković, Đorđe T.",
year = "2007",
abstract = "The aim of this work is the investigation of alpha-tricalcium-phosphate (alpha-TCP) formation from calcium-deficient hydroxyapatite (CDHAP), synthesized by hydrothermal method from CaCl2, EDTA, NaH2PO4 center dot 2H(2)O and urea as precursors at 160 degrees C. Further, the influence of Ca/P ratios in the starting solution on alpha-TCP formation and the settings of obtained cements in simulated body fluid (SBF) were investigated. According to the results of X-ray, FTIR and SEM analyses, it is shown that CDHAP is transformed to beta-TCP at 800 degrees C, and to alpha-TCP at 1200 degrees C. Almost complete transformation of CDHAP into alpha-TCP occur after heating at 1500 degrees C in the case when Ca/P ratio in starting solution was 1,42. Cement powder mixed with the cement liquid (2.5 wt.% solution of Na2HPO4) completely hydrolyzes after 7 days in SBF, forming only CDHAP phase.",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method",
volume = "9",
number = "6",
pages = "1904-1910",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2574"
}
Jokić, B. M., Janković-Častvan, I., Veljović, Đ. N., Bučevac, D., Obradović-Đuričić, K., Petrović, R.,& Janaćković, Đ. T.. (2007). Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method. in Journal of Optoelectronics and Advanced Materials, 9(6), 1904-1910.
https://hdl.handle.net/21.15107/rcub_vinar_2574
Jokić BM, Janković-Častvan I, Veljović ĐN, Bučevac D, Obradović-Đuričić K, Petrović R, Janaćković ĐT. Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method. in Journal of Optoelectronics and Advanced Materials. 2007;9(6):1904-1910.
https://hdl.handle.net/21.15107/rcub_vinar_2574 .
Jokić, Bojan M., Janković-Častvan, Ivona, Veljović, Đorđe N., Bučevac, Dušan, Obradović-Đuričić, K., Petrović, R., Janaćković, Đorđe T., "Synthesis and settings behavior of alpha-TCP from calcium deficient hyroxyapatite obtained by hydrothermal method" in Journal of Optoelectronics and Advanced Materials, 9, no. 6 (2007):1904-1910,
https://hdl.handle.net/21.15107/rcub_vinar_2574 .
