Bone implant materials from eegshell waste

Sopyan, Iis (2015) Bone implant materials from eegshell waste. Applied Mechanics and Materials, 776. pp. 282-288. ISSN 1662-7482

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Abstract

Hydroxyapatite powder has been synthesized from eggshell waste using a simple hydrothermal synthesis. The process involved drying and thermal decomposition of eggshell into calcium oxide followed by a hydrothermal reaction at a temperature of as low as 90C with ammonium di-hydrogen phosphate and water. The produced hydroxyapatite powder is extraordinarily fine with nanosize primary particles. The yield of conversion is high, ca. 90%. Hydroxyapatite pure phase can be maintained until calcination of below 900C, at which -tricalcium phosphate phase started to appear to transform into biphasic calcium phosphate. Its high purity as proved by XRD shown that the product fulfills medical requirement. The present invention provides an environmentally beneficial and straightforward method of producing hydroxyapatite for bone implant materials using eggshell waste.

Item Type:	Article (Journal)
Additional Information:	4809/46959
Uncontrolled Keywords:	Bone Implant Materials, Eggshell, Hydrothermal Reaction, Hydroxyapatite
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	PROF. DR. IIS SOPYAN
Date Deposited:	28 Mar 2018 14:22
Last Modified:	28 Mar 2018 14:22
URI:	http://irep.iium.edu.my/id/eprint/46959

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