|
authors |
Kannan, S; Goetz-Neunhoeffer, F; Neubauer, J; Pina, S; Torres, PMC; Ferreira, JMF |
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nationality |
International |
|
journal |
ACTA BIOMATERIALIA |
|
author keywords |
beta-TCP; Strontium; Magnesium; Co-substitution; Rietveld refinement |
|
keywords |
MECHANICAL PERFORMANCE; STABILIZING IMPURITY; THERMAL-STABILITY; DEFICIENT APATITE; BONE-FORMATION; MG; BETA-CA3(PO4)2; TEMPERATURE; REFINEMENT; SODIUM |
|
abstract |
The synthesis of five different Sr(2+) and Mg(2+)-co-substituted p-tricalcium phosphate (beta-TCP) has been obtained by heating the calcium-deficient apatites above 800 degrees C. With the investigated concentrations of Sr(2+) and Mg(2+) from the present study, no additional phases other than beta-TCP have been detected. The synthesized powders have been characterized by X-ray diffraction, Fourier transform infrared spectrometry, elemental analysis and Rietveld refinement studies. The co-substitution of Sr(2+) and Mg(2+) in the beta-TCP has resulted in the formation of crystalline beta-TCP at hexagonal setting (space group R3c). The reduction of lattice a- and c-axis parameters with the combined substitution of Sr(2+) and Mg(2+) in the beta-TCP has been found evident from the present results. Sr(2+) has been found occupying the Ca(1,2,3,4) sites and Mg(2+) was found at the sixfold coordinated Ca(5) site of beta-TCP structure. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
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publisher |
ELSEVIER SCI LTD |
|
issn |
1742-7061 |
|
year published |
2010 |
|
volume |
6 |
|
issue |
2 |
|
beginning page |
571 |
|
ending page |
576 |
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digital object identifier (doi) |
10.1016/j.actbio.2009.08.009 |
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web of science category |
Engineering, Biomedical; Materials Science, Biomaterials |
|
subject category |
Engineering; Materials Science |
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unique article identifier |
WOS:000274277800029
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