Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders

Dense manganese-doped biphasic calcium phosphate (Mn-BCP) ceramics were fabricated via uniaxial pressing using the sol-gel derived powders. The compacted discs were sintered in ambient atmosphere with temperatures ranging from 800 degrees C to 1400 degrees C. Manganese (Mn) level was varied in the r...

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Main Authors: Sopyan, I., Nawawi, N.A., Shah, Q.H., Ramesh, S., Tan, C.Y., Abd Shukor, Mohd Hamdi
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Published: 2011
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Online Access:http://eprints.um.edu.my/6829/
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spelling my.um.eprints.68292021-10-01T03:55:38Z http://eprints.um.edu.my/6829/ Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders Sopyan, I. Nawawi, N.A. Shah, Q.H. Ramesh, S. Tan, C.Y. Abd Shukor, Mohd Hamdi TS Manufactures Dense manganese-doped biphasic calcium phosphate (Mn-BCP) ceramics were fabricated via uniaxial pressing using the sol-gel derived powders. The compacted discs were sintered in ambient atmosphere with temperatures ranging from 800 degrees C to 1400 degrees C. Manganese (Mn) level was varied in the range of 0.6, 1.9, 4.3, and 11.9mol, and its effect on physical and mechanical properties of the dense samples were investigated. All dense samples have been proved to show HA and beta-TCP phases only. Mn doping has shifted the onset of the sintering temperature of the BCP, leading to the improved densification of BCP ceramics. The relative density also increased with sintering temperature. Considerable grain growth has been observed for Mn-doped BCP samples when compared to the undoped BCP. Furthermore, 11.9mol Mn-doped BCP dense samples showed the maximum hardness of 6.66GPa compared to 2.89 GPa for the undoped BCP. The incorporation of Mn was also found to be beneficial in enhancing the fracture toughness of BCP throughout the temperature range employed. This study has shown that Mn doping was effective in improving the sintering properties of BCP without affecting the phase stability. 2011 Article PeerReviewed Sopyan, I. and Nawawi, N.A. and Shah, Q.H. and Ramesh, S. and Tan, C.Y. and Abd Shukor, Mohd Hamdi (2011) Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders. Materials and Manufacturing Processes, 26 (7). pp. 908-914. ISSN 1042-6914
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TS Manufactures
spellingShingle TS Manufactures
Sopyan, I.
Nawawi, N.A.
Shah, Q.H.
Ramesh, S.
Tan, C.Y.
Abd Shukor, Mohd Hamdi
Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
description Dense manganese-doped biphasic calcium phosphate (Mn-BCP) ceramics were fabricated via uniaxial pressing using the sol-gel derived powders. The compacted discs were sintered in ambient atmosphere with temperatures ranging from 800 degrees C to 1400 degrees C. Manganese (Mn) level was varied in the range of 0.6, 1.9, 4.3, and 11.9mol, and its effect on physical and mechanical properties of the dense samples were investigated. All dense samples have been proved to show HA and beta-TCP phases only. Mn doping has shifted the onset of the sintering temperature of the BCP, leading to the improved densification of BCP ceramics. The relative density also increased with sintering temperature. Considerable grain growth has been observed for Mn-doped BCP samples when compared to the undoped BCP. Furthermore, 11.9mol Mn-doped BCP dense samples showed the maximum hardness of 6.66GPa compared to 2.89 GPa for the undoped BCP. The incorporation of Mn was also found to be beneficial in enhancing the fracture toughness of BCP throughout the temperature range employed. This study has shown that Mn doping was effective in improving the sintering properties of BCP without affecting the phase stability.
format Article
author Sopyan, I.
Nawawi, N.A.
Shah, Q.H.
Ramesh, S.
Tan, C.Y.
Abd Shukor, Mohd Hamdi
author_facet Sopyan, I.
Nawawi, N.A.
Shah, Q.H.
Ramesh, S.
Tan, C.Y.
Abd Shukor, Mohd Hamdi
author_sort Sopyan, I.
title Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
title_short Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
title_full Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
title_fullStr Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
title_full_unstemmed Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
title_sort sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders
publishDate 2011
url http://eprints.um.edu.my/6829/
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score 13.214268