Synthesis of high fracture toughness of hydroxyapatite bioceramics
The sinterability of magnesium oxide (MgO) doped hydroxyapatite (HA) ranging from 1 to 10 wt% when sintered at 1150°C was investigated in terms of phase stability, bulk density, Young's modulus, Vickers hardness and fracture toughness. The addition of up to 1 wt% MgO as sintering additive was f...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2011
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/12224/1/AMR.264-265.1849_10.pdf |
| _version_ | 1825645306740473856 |
|---|---|
| author | Tan, Chou Yong Singh, Ramesh Ranna, Tolouei Iis, Sopyan Teng, Wan Dung |
| author_facet | Tan, Chou Yong Singh, Ramesh Ranna, Tolouei Iis, Sopyan Teng, Wan Dung |
| author_sort | Tan, Chou Yong |
| collection | IIUM |
| description | The sinterability of magnesium oxide (MgO) doped hydroxyapatite (HA) ranging from 1 to 10 wt% when sintered at 1150°C was investigated in terms of phase stability, bulk density, Young's modulus, Vickers hardness and fracture toughness. The addition of up to 1 wt% MgO as sintering additive was found to be beneficial in promoting the densification of HA. Further addition of MgO in the HA matrix would deteriorate its densification properties. Similar results were observed for its stiffness and Vickers hardness. Nevertheless, the fracture toughness of HA was greatly enhanced by the incorporation of 5 wt% MgO. An increased toughness of up to 35% was obtained for the MgOdoped HA when compared to the undoped HA. This improvement is associated to the smaller grain size of the doped sample as compared to the undoped HA.
|
| first_indexed | 2024-03-05T22:45:45Z |
| format | Article |
| id | oai:generic.eprints.org:12224 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T22:45:45Z |
| publishDate | 2011 |
| publisher | Trans Tech Publications, Switzerland |
| record_format | dspace |
| spelling | oai:generic.eprints.org:122242012-05-08T06:34:35Z http://irep.iium.edu.my/12224/ Synthesis of high fracture toughness of hydroxyapatite bioceramics Tan, Chou Yong Singh, Ramesh Ranna, Tolouei Iis, Sopyan Teng, Wan Dung TS Manufactures The sinterability of magnesium oxide (MgO) doped hydroxyapatite (HA) ranging from 1 to 10 wt% when sintered at 1150°C was investigated in terms of phase stability, bulk density, Young's modulus, Vickers hardness and fracture toughness. The addition of up to 1 wt% MgO as sintering additive was found to be beneficial in promoting the densification of HA. Further addition of MgO in the HA matrix would deteriorate its densification properties. Similar results were observed for its stiffness and Vickers hardness. Nevertheless, the fracture toughness of HA was greatly enhanced by the incorporation of 5 wt% MgO. An increased toughness of up to 35% was obtained for the MgOdoped HA when compared to the undoped HA. This improvement is associated to the smaller grain size of the doped sample as compared to the undoped HA. Trans Tech Publications, Switzerland 2011-06-30 Article PeerReviewed application/pdf en http://irep.iium.edu.my/12224/1/AMR.264-265.1849_10.pdf Tan, Chou Yong and Singh, Ramesh and Ranna, Tolouei and Iis, Sopyan and Teng, Wan Dung (2011) Synthesis of high fracture toughness of hydroxyapatite bioceramics. Advanced Materials Research, 264/5. pp. 1849-1855. ISSN 1022-6680 http://www.scientific.net/AMR.264-265.1849 10.4028/www.scientific.net/AMR.264-265.1849 |
| spellingShingle | TS Manufactures Tan, Chou Yong Singh, Ramesh Ranna, Tolouei Iis, Sopyan Teng, Wan Dung Synthesis of high fracture toughness of hydroxyapatite bioceramics |
| title | Synthesis of high fracture toughness of hydroxyapatite bioceramics |
| title_full | Synthesis of high fracture toughness of hydroxyapatite bioceramics |
| title_fullStr | Synthesis of high fracture toughness of hydroxyapatite bioceramics |
| title_full_unstemmed | Synthesis of high fracture toughness of hydroxyapatite bioceramics |
| title_short | Synthesis of high fracture toughness of hydroxyapatite bioceramics |
| title_sort | synthesis of high fracture toughness of hydroxyapatite bioceramics |
| topic | TS Manufactures |
| url | http://irep.iium.edu.my/12224/1/AMR.264-265.1849_10.pdf |
| work_keys_str_mv | AT tanchouyong synthesisofhighfracturetoughnessofhydroxyapatitebioceramics AT singhramesh synthesisofhighfracturetoughnessofhydroxyapatitebioceramics AT rannatolouei synthesisofhighfracturetoughnessofhydroxyapatitebioceramics AT iissopyan synthesisofhighfracturetoughnessofhydroxyapatitebioceramics AT tengwandung synthesisofhighfracturetoughnessofhydroxyapatitebioceramics |