Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior

Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior

Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500 -900ºC. The calcined white Sr-doped HA powders were characterized us...

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Main Authors: C. M., Mardziah, Iis, Sopyan, Ramesh, Singh
Format: Article
Language:English
Published: Society for Biomaterials and Artificial Organs - India 2009
Subjects:
TS Manufactures
Online Access:http://irep.iium.edu.my/11645/
http://irep.iium.edu.my/11645/
http://irep.iium.edu.my/11645/1/taat09i2p105.pdf
id iium-11645
recordtype eprints
spelling iium-116452012-01-24T08:43:06Z http://irep.iium.edu.my/11645/ Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior C. M., Mardziah Iis, Sopyan Ramesh, Singh TS Manufactures Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500 -900ºC. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where â-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of â-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of â-TCP peak only started to appear at a temperature as high as of 900ˆC, compared to non- Sr doping HA which appeared at a temperature below 800ºC. © Society for Biomaterials and Artificial Organs (India), 20090119-37 Society for Biomaterials and Artificial Organs - India 2009 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/11645/1/taat09i2p105.pdf C. M., Mardziah and Iis, Sopyan and Ramesh, Singh (2009) Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior. Trends in Biomaterials and Artificial Organs, 23 (2). pp. 105-113. ISSN 0971-1198 http://www.sbao1i.0or5g
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
C. M., Mardziah
Iis, Sopyan
Ramesh, Singh
Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
description Strontium doped hydroxyapatite (Sr-doped HA) nanopowder has been synthesized using a sol-gel method. The concentration of strontium was varied at 2, 5, 10 and 15 mol%. The as synthesized powders were calcined at temperatures of 500 -900ºC. The calcined white Sr-doped HA powders were characterized using differential and thermogravimetric analysis (TG/DTA), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Morphological evaluation by FESEM measurement shows that the particles of the Sr-doped HA agglomerates are globular in shape with an average size of 1-2 mm in diameter while the primary particles have a diameter of 30-150 nm in average. The calcined powders contained hydroxyapatite phase only for all doping concentration except for the smallest doping concentration, 2 mol%, where â-TCP appeared as the secondary phase. This indicates that the substitution of Sr atoms for Ca atoms have stabilized the HA phase, leading to the inhibition of the appearance of â-TCP phase upon high temperature calcination. Even, for 2 mol% Sr-doped HA, the appearance of â-TCP peak only started to appear at a temperature as high as of 900ˆC, compared to non- Sr doping HA which appeared at a temperature below 800ºC. © Society for Biomaterials and Artificial Organs (India), 20090119-37
format Article
author C. M., Mardziah
Iis, Sopyan
Ramesh, Singh
author_facet C. M., Mardziah
Iis, Sopyan
Ramesh, Singh
author_sort C. M., Mardziah
title Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
title_short Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
title_full Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
title_fullStr Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
title_full_unstemmed Strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
title_sort strontium-doped hydroxyapatite nanopowder via sol-gel method : effect of strontium concentration and calcination temperature on phase behavior
publisher Society for Biomaterials and Artificial Organs - India
publishDate 2009
url http://irep.iium.edu.my/11645/
http://irep.iium.edu.my/11645/
http://irep.iium.edu.my/11645/1/taat09i2p105.pdf
first_indexed 2023-09-18T20:20:55Z
last_indexed 2023-09-18T20:20:55Z
_version_ 1777408100889788416

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