Effect of CAP and PH in the wet-synthesis reaction on the formation of different calcium phosphate phases
Joint Authors
Habib, M.
Fath Allah, N.
Husayn, K.
Source
Journal of Al-Azhar University Engineering Sector
Issue
Vol. 12, Issue 42 (31 Jan. 2017), pp.223-232, 10 p.
Publisher
al-Azhar University Faculty of Engineering
Publication Date
2017-01-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
Recently, there has been a growing new paradigm to use synthetic calcium phosphate biomaterials as bone substitutes in orthopedics applications.
Their structure and composition are close to the human bone, and thus conferring them a good biocompatibility and osteoconductivity.
Wet process is normally used for the synthesis of Hydroxyapatite (HA) and beta-tricalcium phosphate (β-TCP).
However, the wet process was reported to be less reproducible for fabrication of pure apatitic phases in comparison to other synthesis processes.
In this study, it is hypothesized that a specific apatitic phase that is normally obtained from stoichiometric reaction can be synthesized by using non-stoichiometric based reactants in a reproducible way by controlling the pH value during the synthesis process.
A factorial design with two factors and three repeats was implemented to examine the hypothesis [A: Ca/P (1.5, 1.55, 1.667) and B: pH (7.5, 9.5)].
All precipitated powders were dried and aged overnight and then sintered for 2 hours at 800 °C.
The powders were analyzed for phase, group and morphological analysis by X-Ray Diffraction (XRD), FTIR, and ESM/TEM, respectively.
The results have revealed a better understanding of how to synthesize pure calcium phosphates phases for the repair of bone defects using the cost-effective wet chemical process.
Small variation in the reactant molar ratio can significantly change the precipitated phases.
Controlling the reaction pH can governor effectively the precipitation of a specific phase despite of the small variation in the molar ratio
American Psychological Association (APA)
Habib, M.& Husayn, K.& Fath Allah, N.. 2017. Effect of CAP and PH in the wet-synthesis reaction on the formation of different calcium phosphate phases. Journal of Al-Azhar University Engineering Sector،Vol. 12, no. 42, pp.223-232.
https://search.emarefa.net/detail/BIM-856022
Modern Language Association (MLA)
Husayn, K.…[et al.]. Effect of CAP and PH in the wet-synthesis reaction on the formation of different calcium phosphate phases. Journal of Al-Azhar University Engineering Sector Vol. 12, no. 42 (Jan. 2017), pp.223-232.
https://search.emarefa.net/detail/BIM-856022
American Medical Association (AMA)
Habib, M.& Husayn, K.& Fath Allah, N.. Effect of CAP and PH in the wet-synthesis reaction on the formation of different calcium phosphate phases. Journal of Al-Azhar University Engineering Sector. 2017. Vol. 12, no. 42, pp.223-232.
https://search.emarefa.net/detail/BIM-856022
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-856022