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Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali

Hydroxyapatite (HAp) is one of the most versatile bioceramic materials since it is widely used in biomedical and dentistry applications. This research focused on the effect of pH and calcination temperature on synthesized HAp powder from clamshells via chemical precipitation method Besides that, the...

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Main Author: M. Ali, Nurul Huda
Format: Thesis
Language:English
Published: 2015
Subjects:
Nuclear and particle physics. Atomic energy. Radioactivity
Online Access:http://ir.uitm.edu.my/id/eprint/27289/1/TM_NURUL%20HUDA%20M.%20ALI%20EH%2015_5.pdf
http://ir.uitm.edu.my/id/eprint/27289/
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spelling my.uitm.ir.272892020-01-15T08:43:13Z http://ir.uitm.edu.my/id/eprint/27289/ Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali M. Ali, Nurul Huda Nuclear and particle physics. Atomic energy. Radioactivity Hydroxyapatite (HAp) is one of the most versatile bioceramic materials since it is widely used in biomedical and dentistry applications. This research focused on the effect of pH and calcination temperature on synthesized HAp powder from clamshells via chemical precipitation method Besides that, the process of PIM using synthesized HAp powder mixed with PS based binder System had studied. The effect of sintering temperatures on the as-sintered HAp specimens had evaluated for its physical and mechanical properties. The process to synthesize HAp powder involves calcination of clamshells powder followed by the titration method using low concentration of phosphoric acid. Based on the analysis, synthesized HAp powder at the temperature of 850°C with the final pH solution of 6.5 has similar characterizations with commercial HAp powder. Then, the process is followed by a green processing route via PIM technique to produce the assintered HAp specimen. From the results attained, it shows that synthesized HAp feedstock prepared with the powder loading of 60 vol. % shows pseudo-plastic behavior. The feedstock was successfully injection moulded according to ASTM standard C1424- 10 to produce green specimens at the temperature of 200% with the pressure range from 4 to 7 bars. The green specimens were then successfully debound and sintered through single step wick-debinding and sintering process using alumina powder as an embedment agent. The sintered specimens were than evaluated on physical and mechanical properties. From the results obtained, sintering temperature above 1100°C is not preferable since HAp is start to decompose and forming TCP which not suitable for load bearing applications. 2015 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/27289/1/TM_NURUL%20HUDA%20M.%20ALI%20EH%2015_5.pdf M. Ali, Nurul Huda (2015) Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali. Masters thesis, Universiti Teknologi MARA.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Nuclear and particle physics. Atomic energy. Radioactivity
spellingShingle Nuclear and particle physics. Atomic energy. Radioactivity
M. Ali, Nurul Huda
Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali
description Hydroxyapatite (HAp) is one of the most versatile bioceramic materials since it is widely used in biomedical and dentistry applications. This research focused on the effect of pH and calcination temperature on synthesized HAp powder from clamshells via chemical precipitation method Besides that, the process of PIM using synthesized HAp powder mixed with PS based binder System had studied. The effect of sintering temperatures on the as-sintered HAp specimens had evaluated for its physical and mechanical properties. The process to synthesize HAp powder involves calcination of clamshells powder followed by the titration method using low concentration of phosphoric acid. Based on the analysis, synthesized HAp powder at the temperature of 850°C with the final pH solution of 6.5 has similar characterizations with commercial HAp powder. Then, the process is followed by a green processing route via PIM technique to produce the assintered HAp specimen. From the results attained, it shows that synthesized HAp feedstock prepared with the powder loading of 60 vol. % shows pseudo-plastic behavior. The feedstock was successfully injection moulded according to ASTM standard C1424- 10 to produce green specimens at the temperature of 200% with the pressure range from 4 to 7 bars. The green specimens were then successfully debound and sintered through single step wick-debinding and sintering process using alumina powder as an embedment agent. The sintered specimens were than evaluated on physical and mechanical properties. From the results obtained, sintering temperature above 1100°C is not preferable since HAp is start to decompose and forming TCP which not suitable for load bearing applications.
format Thesis
author M. Ali, Nurul Huda
author_facet M. Ali, Nurul Huda
author_sort M. Ali, Nurul Huda
title Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali
title_short Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali
title_full Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali
title_fullStr Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali
title_full_unstemmed Synthesized hydroxyapatite Powder from clamshell / Nurul Huda M. Ali
title_sort synthesized hydroxyapatite powder from clamshell / nurul huda m. ali
publishDate 2015
url http://ir.uitm.edu.my/id/eprint/27289/1/TM_NURUL%20HUDA%20M.%20ALI%20EH%2015_5.pdf
http://ir.uitm.edu.my/id/eprint/27289/
_version_ 1685650251703123968
score 13.211869

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