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Advanced 3Y-TZP bioceramic doped with Al 2 O 3 and MnO 2 particles potentially for biomedical applications: Study on mechanical and degradation properties

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dc.citedby18
dc.contributor.authorRagurajan D.en_US
dc.contributor.authorGolieskardi M.en_US
dc.contributor.authorSatgunam M.en_US
dc.contributor.authorHoque M.E.en_US
dc.contributor.authorNg A.M.H.en_US
dc.contributor.authorGhazali M.J.en_US
dc.contributor.authorAriffin A.K.en_US
dc.contributor.authorid56520125100en_US
dc.contributor.authorid55866907000en_US
dc.contributor.authorid48561725600en_US
dc.contributor.authorid35834864100en_US
dc.contributor.authorid8330324300en_US
dc.contributor.authorid23099803300en_US
dc.contributor.authorid6701641666en_US
dc.date.accessioned2023-05-29T06:56:07Z
dc.date.available2023-05-29T06:56:07Z
dc.date.issued2018
dc.descriptionAlumina; Aluminum oxide; Bioceramics; Ceramic materials; Degradation; Doping (additives); Elastic moduli; Fracture toughness; Manganese oxide; Mechanical properties; Medical applications; Sintering; Temperature; Vickers hardness; Yttrium oxide; Zirconia; 3Y-TZP; Biomedical applications; Hip implants; Low-temperature degradations; Microstructural investigation; Pressure-less sintering; Ringer's solution; Yttria stabilized tetragonal zirconias; Ceramic Prostheticsen_US
dc.description.abstractThe effectiveness of Al 2 O 3 and MnO 2 in enhancing mechanical properties and retarding degradation of 3 mol% yttria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic samples was evaluated by pressureless sintering at temperatures ranging from 1250 �C to 1550 �C with standard holding time of 2 h. It was observed that the inclusion of Al 2 O 3 and MnO 2 into 3Y-TZP was beneficial for the improvement of mechanical properties and ageing resistance. The optimum amounts of dopants were determined to be of 0.6 wt% Al 2 O 3 and 0.4 wt% MnO 2 . Microstructural investigation revealed that at the same temperature, the tetragonal grain size was not influenced by the increase of dopant levels. With optimum dopants the 3Y-TZP ceramic (density 6.1 g/cm 3 ) samples demonstrated the Vickers hardness of 11.6 GPa, fracture toughness, K IC of 9.8 MPa m 1/2 , flexural strength of 900 MPa and Young's modulus of 210 GPa. Furthermore, the efficacy of the dopants (MnO 2 and Al 2 O 3 ) in retarding low-temperature degradation of 3Y-TZP ceramic during exposure in Ringer's solution at 37 �C was also evaluated. Overall, the degradation rate and weight loss of 0.6 wt% Al 2 O 3 and 0.4 wt% MnO 2 ceramic samples were 0.66% in 8 weeks as compared to the undoped samples. The 3Y-TZP bioceramic doped with Al 2 O 3 and MnO 2 could be a potential candidate material for biomedical applications (e.g. hip implants) due to its improved mechanical properties and superior ageing resistance. � 2018 Brazilian Metallurgical, Materials and Mining Association.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.jmrt.2017.05.015
dc.identifier.epage442
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85056521537
dc.identifier.spage432
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85056521537&doi=10.1016%2fj.jmrt.2017.05.015&partnerID=40&md5=c68263078c30c4aa724be28300ecf073
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/24152
dc.identifier.volume7
dc.publisherElsevier Editora Ltdaen_US
dc.relation.ispartofAll Open Access, Gold
dc.sourceScopus
dc.sourcetitleJournal of Materials Research and Technology
dc.titleAdvanced 3Y-TZP bioceramic doped with Al 2 O 3 and MnO 2 particles potentially for biomedical applications: Study on mechanical and degradation propertiesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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