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Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods

Beta-tricalcium phosphate (β-TCP) was synthesized using an aqueous wet precipitation method as well as a hydrothermal method. The processing parameters adopted in both methods were maintained to be as similar as possible. The precursor materials reacted in both methods were 0.3 mole of phosphoric ac...

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Main Authors: Othman, Radzali, Mustafa, Zaleha, Ishak, Nor Fatiha, Pham, Trung Kien, Shamsudin, Zurina, Mohd Rosli, Zulkifli, Mohd Noor, Ahmad Fauzi
Format: Article
Language:English
Published: Penerbit Akademia Baru 2018
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utem.edu.my/id/eprint/22882/2/RO%20and%20Zmustafa%202018%20Intermediate%20Phases%20Formed%20during%20Synthesis%20of%20%C3%A2-Tricalcium.pdf
http://eprints.utem.edu.my/id/eprint/22882/
http://www.akademiabaru.com/doc/ARFMTSV48_N2_P141_147.pdf
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spelling my.utem.eprints.228822021-08-25T12:36:13Z http://eprints.utem.edu.my/id/eprint/22882/ Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods Othman, Radzali Mustafa, Zaleha Ishak, Nor Fatiha Pham, Trung Kien Shamsudin, Zurina Mohd Rosli, Zulkifli Mohd Noor, Ahmad Fauzi T Technology (General) TA Engineering (General). Civil engineering (General) Beta-tricalcium phosphate (β-TCP) was synthesized using an aqueous wet precipitation method as well as a hydrothermal method. The processing parameters adopted in both methods were maintained to be as similar as possible. The precursor materials reacted in both methods were 0.3 mole of phosphoric acid, H3PO4, and 0.45 mole of calcium hydroxide, Ca(OH)2. The available processing parameters for the precipitation method are much more varied whilst the parameters for the hydrothermal method are much more limited. Hence, the parameters chosen were based on the availability of the parameters to accommodate both methods, viz. the use of the same precursor materials in a stoichiometric ratio of 1.5, a reaction temperature of 70°C, a reaction time of 2 hours, a stirring speed of either 200 or100 rpm, and a stirring duration of 2 hours. The intermediate phases formed upon precipitation were compared. It was confirmed by x–ray diffraction that the powder formed from the precipitation method was monetite and hydroxyapatite, whilst the initial the powder formed from the hydrothermal method consisted of brushite and hydroxyapatite. Thermal analysis was performed on both powders to ascertain the best heat-treatment temperature. Both powders were subsequently subjected to a heat-treatment temperature of 900°C and both were confirmed by x-ray diffraction to be single-phase β-tricalcium phosphate. Scanning electron microscopy was performed on both heat-treated powders and the microstructures observed were found to be distinctly different. The precipitated powder consisted of nano-sized powders that were heavily agglomerated, whilst the hydrothermal powder consisted of a flattened microstructure due to the pressure imposed upon reaction. Penerbit Akademia Baru 2018 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/22882/2/RO%20and%20Zmustafa%202018%20Intermediate%20Phases%20Formed%20during%20Synthesis%20of%20%C3%A2-Tricalcium.pdf Othman, Radzali and Mustafa, Zaleha and Ishak, Nor Fatiha and Pham, Trung Kien and Shamsudin, Zurina and Mohd Rosli, Zulkifli and Mohd Noor, Ahmad Fauzi (2018) Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods. Journal Of Advanced Research In Fluid Mechanics And Thermal Sciences, 48 (2). pp. 141-147. ISSN 2289-7879 http://www.akademiabaru.com/doc/ARFMTSV48_N2_P141_147.pdf
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Othman, Radzali
Mustafa, Zaleha
Ishak, Nor Fatiha
Pham, Trung Kien
Shamsudin, Zurina
Mohd Rosli, Zulkifli
Mohd Noor, Ahmad Fauzi
Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods
description Beta-tricalcium phosphate (β-TCP) was synthesized using an aqueous wet precipitation method as well as a hydrothermal method. The processing parameters adopted in both methods were maintained to be as similar as possible. The precursor materials reacted in both methods were 0.3 mole of phosphoric acid, H3PO4, and 0.45 mole of calcium hydroxide, Ca(OH)2. The available processing parameters for the precipitation method are much more varied whilst the parameters for the hydrothermal method are much more limited. Hence, the parameters chosen were based on the availability of the parameters to accommodate both methods, viz. the use of the same precursor materials in a stoichiometric ratio of 1.5, a reaction temperature of 70°C, a reaction time of 2 hours, a stirring speed of either 200 or100 rpm, and a stirring duration of 2 hours. The intermediate phases formed upon precipitation were compared. It was confirmed by x–ray diffraction that the powder formed from the precipitation method was monetite and hydroxyapatite, whilst the initial the powder formed from the hydrothermal method consisted of brushite and hydroxyapatite. Thermal analysis was performed on both powders to ascertain the best heat-treatment temperature. Both powders were subsequently subjected to a heat-treatment temperature of 900°C and both were confirmed by x-ray diffraction to be single-phase β-tricalcium phosphate. Scanning electron microscopy was performed on both heat-treated powders and the microstructures observed were found to be distinctly different. The precipitated powder consisted of nano-sized powders that were heavily agglomerated, whilst the hydrothermal powder consisted of a flattened microstructure due to the pressure imposed upon reaction.
format Article
author Othman, Radzali
Mustafa, Zaleha
Ishak, Nor Fatiha
Pham, Trung Kien
Shamsudin, Zurina
Mohd Rosli, Zulkifli
Mohd Noor, Ahmad Fauzi
author_facet Othman, Radzali
Mustafa, Zaleha
Ishak, Nor Fatiha
Pham, Trung Kien
Shamsudin, Zurina
Mohd Rosli, Zulkifli
Mohd Noor, Ahmad Fauzi
author_sort Othman, Radzali
title Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods
title_short Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods
title_full Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods
title_fullStr Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods
title_full_unstemmed Intermediate Phases Formed During Synthesis Of β-Tricalcium Phosphate Via Wet Precipitation And Hydrothermal Methods
title_sort intermediate phases formed during synthesis of β-tricalcium phosphate via wet precipitation and hydrothermal methods
publisher Penerbit Akademia Baru
publishDate 2018
url http://eprints.utem.edu.my/id/eprint/22882/2/RO%20and%20Zmustafa%202018%20Intermediate%20Phases%20Formed%20during%20Synthesis%20of%20%C3%A2-Tricalcium.pdf
http://eprints.utem.edu.my/id/eprint/22882/
http://www.akademiabaru.com/doc/ARFMTSV48_N2_P141_147.pdf
_version_ 1709671911992066048
score 13.211869

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