Synthesis and phase transformation of calcium phosphate prepared from chicken eggshells and ammonium phosphate

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Publication Details

Author listPankaew P., Hoonnivathana E., Limsuwan P., Naemchanthara K.

PublisherTrans Tech Publications

Publication year2011

Volume number214

Start page182

End page186

Number of pages5

ISBN9783037850633

ISSN1022-6680

eISSN1662-8985

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79952400706&doi=10.4028%2fwww.scientific.net%2fAMR.214.182&partnerID=40&md5=f250d2850378808100e6ed1080bb6f38

LanguagesEnglish-Great Britain (EN-GB)


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Abstract

Material that shows hydroxyapatite and β-tricalcium phosphate phases is called biphasic calcium phosphate (BCP). In present work, biphasic calcium phosphate was prepared and characterized for future applications on the utilization of bioactivity of HAp and resorbability of β-TCP properties. It was simply synthesized by precipitation method using eggshell as the calcium source (Ca) in the form of calcium nitrate and ammonium phosphate as the phosphate source (P) to obtain biphasic calcium phosphate. The prepared BCP powders and crystal structure were characterized by X-ray diffraction (XRD), Rietveld refinements and Fourier transform infrared (FT-IR) techniques. The results indicate that BCP was observed at the calcining temperature of 800 °C and above. Furthermore, the crystallinity of BCP increases with increasing temperature from 800 - 1200 °C. The phase fraction of β-TCP is enhanced with pH of a solution from 8.6-10.6 and decrease with the temperature range of 800 - 1200 °C. The formation of BCP arises from its non-stoichiometric composition of materials such as variation of synthesis parameters. © (2011) Trans Tech Publications.


Keywords

Biphasic calcium phosphateβ-tricalcium phosphate


Last updated on 2023-04-10 at 07:36