Influence of magnesium doping in hydroxyapatite bioceramics sintered by short holding time

S. Ramesh, R. Tolouei, C. Y. Tan, M. Amiriyan, B. K. Yap, J. Purbolaksono, M. Hamdi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In the present research, nano hydroxyapatite (HA) powder doped with magnesia (MgO) was studied. The dopant was added to pure HA powder and ball milling was done for 1 hour. Green samples, in the form of discs and rectangular bars, were prepared and consolidated in air at temperatures ranging from 1000°C to 1300°C. The sintered samples were characterized to determine the phase stability, relative density, hardness, fracture toughness and Young's modulus. The phase analysis revealed that the HA phase was not disrupted regardless of dopant additions and sintering temperature. It has been revealed that all HA samples achieved > 98% relative density when sintered between 1100°C-1300°C. However, the addition of 0.5 wt% MgO when sintered at 1100°C was found to be most beneficial in aiding sintering with samples exhibiting the highest Young's modulus of 122.15 GPa and fracture toughness of 1.64 MPam1/2 as compared to 116.57 GPa and 1.18 MPam1/2 for the undoped HA.

Original languageEnglish
Title of host publication5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011
Pages80-83
Number of pages4
DOIs
Publication statusPublished - 11 Jul 2011
Event5th Kuala Lumpur International Conference on Biomedical Engineering, BIOMED 2011, Held in Conjunction with the 8th Asian Pacific Conference on Medical and Biological Engineering, APCMBE 2011 - Kuala Lumpur, Malaysia
Duration: 20 Jun 201123 Jun 2011

Publication series

NameIFMBE Proceedings
Volume35 IFMBE
ISSN (Print)1680-0737

Other

Other5th Kuala Lumpur International Conference on Biomedical Engineering, BIOMED 2011, Held in Conjunction with the 8th Asian Pacific Conference on Medical and Biological Engineering, APCMBE 2011
CountryMalaysia
CityKuala Lumpur
Period20/06/1123/06/11

Fingerprint

Bioceramics
Durapatite
Hydroxyapatite
Magnesium
Doping (additives)
Powders
Fracture toughness
Sintering
Elastic moduli
Magnesium Oxide
Phase stability
Magnesia
Ball milling
Hardness
Temperature
Air

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

Cite this

Ramesh, S., Tolouei, R., Tan, C. Y., Amiriyan, M., Yap, B. K., Purbolaksono, J., & Hamdi, M. (2011). Influence of magnesium doping in hydroxyapatite bioceramics sintered by short holding time. In 5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011 (pp. 80-83). (IFMBE Proceedings; Vol. 35 IFMBE). https://doi.org/10.1007/978-3-642-21729-6_23
Ramesh, S. ; Tolouei, R. ; Tan, C. Y. ; Amiriyan, M. ; Yap, B. K. ; Purbolaksono, J. ; Hamdi, M. / Influence of magnesium doping in hydroxyapatite bioceramics sintered by short holding time. 5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011. 2011. pp. 80-83 (IFMBE Proceedings).
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abstract = "In the present research, nano hydroxyapatite (HA) powder doped with magnesia (MgO) was studied. The dopant was added to pure HA powder and ball milling was done for 1 hour. Green samples, in the form of discs and rectangular bars, were prepared and consolidated in air at temperatures ranging from 1000°C to 1300°C. The sintered samples were characterized to determine the phase stability, relative density, hardness, fracture toughness and Young's modulus. The phase analysis revealed that the HA phase was not disrupted regardless of dopant additions and sintering temperature. It has been revealed that all HA samples achieved > 98{\%} relative density when sintered between 1100°C-1300°C. However, the addition of 0.5 wt{\%} MgO when sintered at 1100°C was found to be most beneficial in aiding sintering with samples exhibiting the highest Young's modulus of 122.15 GPa and fracture toughness of 1.64 MPam1/2 as compared to 116.57 GPa and 1.18 MPam1/2 for the undoped HA.",
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Ramesh, S, Tolouei, R, Tan, CY, Amiriyan, M, Yap, BK, Purbolaksono, J & Hamdi, M 2011, Influence of magnesium doping in hydroxyapatite bioceramics sintered by short holding time. in 5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011. IFMBE Proceedings, vol. 35 IFMBE, pp. 80-83, 5th Kuala Lumpur International Conference on Biomedical Engineering, BIOMED 2011, Held in Conjunction with the 8th Asian Pacific Conference on Medical and Biological Engineering, APCMBE 2011, Kuala Lumpur, Malaysia, 20/06/11. https://doi.org/10.1007/978-3-642-21729-6_23

Influence of magnesium doping in hydroxyapatite bioceramics sintered by short holding time. / Ramesh, S.; Tolouei, R.; Tan, C. Y.; Amiriyan, M.; Yap, B. K.; Purbolaksono, J.; Hamdi, M.

5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011. 2011. p. 80-83 (IFMBE Proceedings; Vol. 35 IFMBE).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Ramesh S, Tolouei R, Tan CY, Amiriyan M, Yap BK, Purbolaksono J et al. Influence of magnesium doping in hydroxyapatite bioceramics sintered by short holding time. In 5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011. 2011. p. 80-83. (IFMBE Proceedings). https://doi.org/10.1007/978-3-642-21729-6_23