The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications
Hydroxyapatite is one of the most potential bioceramic to be applied into the medical and dental field due to its biocompatibility with human hard tissue. However, its properties are still behind those of hard tissues and further studies need to be done to improve its mechanical properties. In the c...
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| Format: | Article |
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Maney Publishing
2014
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| author | Cheah, G.P. Tan, C.Y. Yusof, F. Muchtar, A. Lim, K.F. Yap, B.K. |
| author_facet | Cheah, G.P. Tan, C.Y. Yusof, F. Muchtar, A. Lim, K.F. Yap, B.K. |
| author_sort | Cheah, G.P. |
| collection | UM |
| description | Hydroxyapatite is one of the most potential bioceramic to be applied into the medical and dental field due to its biocompatibility with human hard tissue. However, its properties are still behind those of hard tissues and further studies need to be done to improve its mechanical properties. In the current work, hydroxyapatite powder was prepared via the wet chemical method. Subsequently, the powder was doped with zirconia with weight percentages of 0.05, 0.1, 0.5, 1 and 5%. The bulks were then sintered at temperatures of 1100, 1200 and 1300 degrees C at atmospheric pressure. The results revealed that the highest relative density of 99.9% was obtained for samples doped with 0.1% zirconia when sintered at 1200 degrees C. Nevertheless, samples doped with 5 wt-% of zirconia showed relative lower relative densities regardless of sintering temperature. This was attributed by the presence of secondary phase which has cause decomposition during sintering. |
| first_indexed | 2024-03-06T05:38:52Z |
| format | Article |
| id | um.eprints-15463 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:38:52Z |
| publishDate | 2014 |
| publisher | Maney Publishing |
| record_format | dspace |
| spelling | um.eprints-154632015-12-30T08:48:09Z http://eprints.um.edu.my/15463/ The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications Cheah, G.P. Tan, C.Y. Yusof, F. Muchtar, A. Lim, K.F. Yap, B.K. Q Science (General) Hydroxyapatite is one of the most potential bioceramic to be applied into the medical and dental field due to its biocompatibility with human hard tissue. However, its properties are still behind those of hard tissues and further studies need to be done to improve its mechanical properties. In the current work, hydroxyapatite powder was prepared via the wet chemical method. Subsequently, the powder was doped with zirconia with weight percentages of 0.05, 0.1, 0.5, 1 and 5%. The bulks were then sintered at temperatures of 1100, 1200 and 1300 degrees C at atmospheric pressure. The results revealed that the highest relative density of 99.9% was obtained for samples doped with 0.1% zirconia when sintered at 1200 degrees C. Nevertheless, samples doped with 5 wt-% of zirconia showed relative lower relative densities regardless of sintering temperature. This was attributed by the presence of secondary phase which has cause decomposition during sintering. Maney Publishing 2014 Article PeerReviewed Cheah, G.P. and Tan, C.Y. and Yusof, F. and Muchtar, A. and Lim, K.F. and Yap, B.K. (2014) The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications. Materials Research Innovations, 18 (S6). pp. 151-154. |
| spellingShingle | Q Science (General) Cheah, G.P. Tan, C.Y. Yusof, F. Muchtar, A. Lim, K.F. Yap, B.K. The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications |
| title | The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications |
| title_full | The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications |
| title_fullStr | The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications |
| title_full_unstemmed | The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications |
| title_short | The effects of sintering behavior of zirconia-doped hydroxyapatite for clinical applications |
| title_sort | effects of sintering behavior of zirconia doped hydroxyapatite for clinical applications |
| topic | Q Science (General) |
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