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Sintering studies of synthesised manganeseoxide- doped calcium phosphate via wet chemical precipitation method

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dc.contributor.authorNorakmal A.en_US
dc.contributor.authorRamesh S.en_US
dc.contributor.authorTan C.Y.en_US
dc.contributor.authorMuchtar A.en_US
dc.contributor.authorK. Yap B.en_US
dc.contributor.authorTolouei R.en_US
dc.contributor.authorid55886582600en_US
dc.contributor.authorid41061958200en_US
dc.contributor.authorid16029485400en_US
dc.contributor.authorid6602663285en_US
dc.contributor.authorid26649255900en_US
dc.contributor.authorid36706646500en_US
dc.date.accessioned2023-05-16T02:45:34Z
dc.date.available2023-05-16T02:45:34Z
dc.date.issued2014
dc.description.abstractThe beneficial effects of incorporating small amounts of manganese oxide, MnO2 (005, 01, 03, 05 and 10 wt%) into biphasic calcium phosphate in promoting sintering and its effect on physical and mechanical properties of the dense sample sintered at 1000-1400°C were investigated. In this work, a wet precipitation method was employed to prepare biphasic calcium phosphate powder. The starting materials of calcium hydroxide and orthophosphoric acid were used in the titration process and the as-synthesised powder was subsequently doped with manganese oxide by wet milling. The X-ray diffraction analysis revealed that the phase present in the as-synthesised powder was predominantly hydroxyapatite. However, upon sintering, all the samples revealed the existence of biphasic calcium phosphate i.e. a mix phase comprising of hydroxyapatite and tricalcium phosphate. The highest relative density of 995% was obtained for biphasic calcium phosphate doped with 03 wt% MnO2 when sintered at 1400°C. The results also revealed that 03 wt% MnO2-doped biphasic calcium phosphate gave a maximum Vickers hardness of 514 GPa. On the other hand, 10 wt% MnO2-doped biphasic calcium phosphate exhibited highest fracture toughness of 132 MPa m1/2 as compared to 088 MPa m1/2 for undoped biphasic calcium phosphate when sintered at 1200°C. © W. S. Maney &Son Ltd 2014.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1179/1432891714Z.000000000947
dc.identifier.epage147-S6-150
dc.identifier.scopus2-s2.0-84918778573
dc.identifier.spageS6
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84918778573&doi=10.1179%2f1432891714Z.000000000947&partnerID=40&md5=66df3ea5fb704b5cb3f2264ef240a61f
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/21821
dc.identifier.volume18
dc.publisherManey Publishingen_US
dc.sourceScopus
dc.sourcetitleMaterials Research Innovations
dc.titleSintering studies of synthesised manganeseoxide- doped calcium phosphate via wet chemical precipitation methoden_US
dc.typeArticleen_US
dspace.entity.typePublication
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