M. Jamil, A. Elouahli, H. Khallok, B. El ouatli, Z. Hatim, Characterization of β-tricalcium phosphate-clay mineral composite obtained by sintering powder of apatitic calcium phosphate and montmorillonite, Surfaces and Interfaces, Volume 17, 2019, 100380, ISSN 2468-0230, https://doi.org/10.1016/j.surfin.2019.100380
Characterization of β-tricalcium phosphate-clay mineral composite obtained by sintering powder of apatitic calcium phosphate and montmorillonite
|Author:||Jamil, M.1; Elouahli, A.1; Khallok, H.1,2;|
1Team of Energy, Materials and Environment, Department of Chemistry, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
2Environmental and Chemical Engineering, Faculty of Technology, University of Oulu, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 1.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019103035971
|Publish Date:|| 2021-09-06
Calcium phosphates and clay minerals have taken great attention by researchers for medicals applications. Recently, numerous researchers have been developed the calcium phosphate/ montmorillonite composites as a synthetic bone graft substitutes. In this study, β-tricalcium phosphate (Ca₃(PO₄)₂,β-TCP)/Montmorillonite(MNa) composites were developed by sintering powder at 900 °C of apatitic tricalcium phosphate (Ca₉(HPO₄)(PO₄)₅(OH), TCPa) and unmodified MNa at various amounts (2, 5, and 10 wt.%). The composites were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FT-IR) and thermal analysis (TG / DSC). XRD results show that the sintering of TCPa with and without MNa lead to the formation of a single crystallized β-TCP phase and that the addition of the MNa causes a change in his crystalline lattice. The results of XRD, FT-IR and the structural refinement indicate the insertion of the clay ions in the β-TCP structure. This ionic substitution leads to a decrease in lattice parameters and an increase in index distortion. The low percentages of MNa lead to an increase in crystallite size while the high values (10 wt.%) lead to an opposite effect. The change of the composition leads to the stabilization of the β-TCP phase, and the temperature of the allotropic transformation of β to α-TCP shifts toward the higher temperature.
Surfaces and interfaces
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
215 Chemical engineering
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.