Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties

Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties

Mechanochemical synthesis of two or more different precursors is a simple method to prepare metallic alloys, polymer and ceramic composite materials. This mechanical reaction based synthesis also has been employed to produce hydroxyapatite (HA) powder for bone implant application. In this present st...

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Main Authors: Syed Abu Bakar, Sharifah Adzila, Iis, Sopyan, Abd Shukor, Mohd Hamdi
Format: Article
Language:English
Published: Trans Tech Publications Ltd., Switzerland 2012
Subjects:
TS Manufactures
Online Access:http://irep.iium.edu.my/12232/
http://irep.iium.edu.my/12232/
http://irep.iium.edu.my/12232/1/AMM.110-116.8%5B1%5D_11.pdf
id iium-12232
recordtype eprints
spelling iium-122322012-02-24T01:28:13Z http://irep.iium.edu.my/12232/ Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties Syed Abu Bakar, Sharifah Adzila Iis, Sopyan Abd Shukor, Mohd Hamdi TS Manufactures Mechanochemical synthesis of two or more different precursors is a simple method to prepare metallic alloys, polymer and ceramic composite materials. This mechanical reaction based synthesis also has been employed to produce hydroxyapatite (HA) powder for bone implant application. In this present study, we employed mechanochemical method to synthesize hydroxyapatite nanopowder from dry mixture of calcium hydroxide (Ca (OH)2) and di-ammonium hydrogen phosphate [(NH4)2HPO4] powders. The effect of mechanochemical process on powder properties was investigated. Three rotation speeds of 170 rpm (M1), 270 rpm (M2) and 370 rpm (M3) were chose with 15 hours milling time respectively. The milling time at 370 rpm (M3) was extended to 30 hours (T1) and 60 hours (T2). Characterization of nanopowders were accomplished by Fourier transform infrared (FTIR), X-ray diffraction (XRD), nanosizer analysis, field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Rotation speed and milling time affected the obtained powders with nanocrystallite HA structure. The narrow peaks appeared with the incremental of crystallite size (9 – 21 nm) and crystallinity (21-59%) when the rotation speed was increased to 370 rpm (M3). However, particle size distribution (322-192 nm) was decreased with the rotation speed. Morphological evaluation indicated that the average particle size of resultant powder which consists of agglomerate crystals and irregular shapes reached about 17 - 36 nm. The as synthesized nanopowder showed that 370 rpm at 15 hours of milling is the suitable parameter to be applied for hydroxyapatite nanopowder synthesis in mechanochemical method. Trans Tech Publications Ltd., Switzerland 2012 Article PeerReviewed application/pdf en http://irep.iium.edu.my/12232/1/AMM.110-116.8%5B1%5D_11.pdf Syed Abu Bakar, Sharifah Adzila and Iis, Sopyan and Abd Shukor, Mohd Hamdi (2012) Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties. Applied Mechanics and Materials, 110-16. pp. 3639-3644. ISSN 1660-9336 http://www.scientific.net/AMM.110-116.3639
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic TS Manufactures
spellingShingle TS Manufactures
Syed Abu Bakar, Sharifah Adzila
Iis, Sopyan
Abd Shukor, Mohd Hamdi
Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties
description Mechanochemical synthesis of two or more different precursors is a simple method to prepare metallic alloys, polymer and ceramic composite materials. This mechanical reaction based synthesis also has been employed to produce hydroxyapatite (HA) powder for bone implant application. In this present study, we employed mechanochemical method to synthesize hydroxyapatite nanopowder from dry mixture of calcium hydroxide (Ca (OH)2) and di-ammonium hydrogen phosphate [(NH4)2HPO4] powders. The effect of mechanochemical process on powder properties was investigated. Three rotation speeds of 170 rpm (M1), 270 rpm (M2) and 370 rpm (M3) were chose with 15 hours milling time respectively. The milling time at 370 rpm (M3) was extended to 30 hours (T1) and 60 hours (T2). Characterization of nanopowders were accomplished by Fourier transform infrared (FTIR), X-ray diffraction (XRD), nanosizer analysis, field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Rotation speed and milling time affected the obtained powders with nanocrystallite HA structure. The narrow peaks appeared with the incremental of crystallite size (9 – 21 nm) and crystallinity (21-59%) when the rotation speed was increased to 370 rpm (M3). However, particle size distribution (322-192 nm) was decreased with the rotation speed. Morphological evaluation indicated that the average particle size of resultant powder which consists of agglomerate crystals and irregular shapes reached about 17 - 36 nm. The as synthesized nanopowder showed that 370 rpm at 15 hours of milling is the suitable parameter to be applied for hydroxyapatite nanopowder synthesis in mechanochemical method.
format Article
author Syed Abu Bakar, Sharifah Adzila
Iis, Sopyan
Abd Shukor, Mohd Hamdi
author_facet Syed Abu Bakar, Sharifah Adzila
Iis, Sopyan
Abd Shukor, Mohd Hamdi
author_sort Syed Abu Bakar, Sharifah Adzila
title Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties
title_short Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties
title_full Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties
title_fullStr Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties
title_full_unstemmed Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties
title_sort mechanochemical synthesis of hydroxyapatite nanopowder: effects of rotation speed and milling time on powder properties
publisher Trans Tech Publications Ltd., Switzerland
publishDate 2012
url http://irep.iium.edu.my/12232/
http://irep.iium.edu.my/12232/
http://irep.iium.edu.my/12232/1/AMM.110-116.8%5B1%5D_11.pdf
first_indexed 2023-09-18T20:21:28Z
last_indexed 2023-09-18T20:21:28Z
_version_ 1777408135575633920

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