Processing of Nano Hydroxyapatite from Eggshell and Seashell

Abstract:

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Hydroxyapatite (HAp) was successfully produced from recycled eggshell, seashell and phosphoric acid by using two different type of milling method (attrition milling and ball milling). According to the analysis, the attrition milling resulted nanosize HAp even after milling, while the ball milling process provided HAp only after a 400oC, 2 h long heat treatment. The grain size in both cases were approximately preserved during the heat treatment. The effect of temperature on stoichiometry, morphology and crystallinity of HAp powders were investigated. The structures of the HAp were characterized by X-ray diffraction and Scanning Electron Microsopy.

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Periodical:

Edited by:

P. J. Szabó and T. Berecz

Pages:

159-164

DOI:

10.4028/www.scientific.net/MSF.659.159

Citation:

G. Gergely et al., "Processing of Nano Hydroxyapatite from Eggshell and Seashell", Materials Science Forum, Vol. 659, pp. 159-164, 2010

Online since:

September 2010

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$35.00

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