Influence of Sr2+ on Calcium-Deficient Hydroxyapatite Formation Kinetics and Morphology in Partially Amorphized α-TCP

Journal article
(Original article)


Publication Details

Author(s): Hurle K, Neubauer J, Götz-Neunhoeffer F
Journal: Journal of the American Ceramic Society
Publication year: 2015
Volume: 99
Journal issue: 3
Pages range: 1055-1063
ISSN: 1551-2916
Language: English


Abstract


Hydration of partially amorphized α-TCP powders with Sr concentrations ranging from 0 to 10 mol% substitution for Ca was analyzed by isothermal calorimetry and quantitative in-situ XRD. Hydration of both crystalline α-TCP and amorphous TCP (ATCP) forming CDHA was retarded to an increasing extent with increasing Sr content. Sr slightly reduced the crystallite size (XRD coherent scattering domains) of the CDHA formed during hydration, while the size of crystals visible under SEM was not noticeably affected. Reaction enthalpies of ΔH = 122 ± 8 J/g and ΔH = 257 ± 8 J/g were determined for the hydration of crystalline α-TCP and ATCP containing 5 mol% Sr substitution for Ca. This is comparable with the corresponding reaction enthalpies previously obtained for undoped samples, which are 106 ± 7 J/g for α-TCP and 250 ± 7 J/g for ATCP.



FAU Authors / FAU Editors

Götz-Neunhoeffer, Friedlinde Prof. Dr.
Lehrstuhl für Mineralogie
Hurle, Katrin Dr.
Lehrstuhl für Mineralogie
Neubauer, Jürgen apl. Prof. Dr.
Lehrstuhl für Mineralogie


How to cite

APA:
Hurle, K., Neubauer, J., & Götz-Neunhoeffer, F. (2015). Influence of Sr2+ on Calcium-Deficient Hydroxyapatite Formation Kinetics and Morphology in Partially Amorphized α-TCP. Journal of the American Ceramic Society, 99(3), 1055-1063. https://dx.doi.org/10.1111/jace.14005

MLA:
Hurle, Katrin, Jürgen Neubauer, and Friedlinde Götz-Neunhoeffer. "Influence of Sr2+ on Calcium-Deficient Hydroxyapatite Formation Kinetics and Morphology in Partially Amorphized α-TCP." Journal of the American Ceramic Society 99.3 (2015): 1055-1063.

BibTeX: 

Last updated on 2018-07-08 at 23:13