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Preparation and evaluation of cerium oxide-bovine hydroxyapatite composites for biomedical engineering applications

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dc.contributor.authorOKTAR, FAİK NÜZHET
dc.contributor.authorsGunduz, O.; Gode, C.; Ahmad, Z.; Gokce, H.; Yetmez, M.; Kalkandelen, C.; Sahin, Y. M.; Oktar, F. N.
dc.date.accessioned2022-03-13T12:46:52Z
dc.date.available2022-03-13T12:46:52Z
dc.date.issued2014
dc.description.abstractThe fabrication and characterization of bovine hydroxyapatite (BHA) and cerium oxide (CeO2) composites are presented. CeO2 (at varying concentrations 1, 5 and 10 wt%) were added to calcinated BHA powder. The resulting mixtures were shaped into green cylindrical samples by powder pressing (350 MPa) followed by sintering in air (1000-1300 degrees C for 4 h). Density, Vickers microhardness (HV), compression strength, scanning electron microscopy (SEM) and X-ray diffraction (XRD) studies were performed on the products. The sintering behavior, microstructural characteristics and mechanical properties were evaluated. Differences in the sintering temperature (for 1 wt% CeO2 composites) between 1200 and 1300 degrees C, show a 3.3% increase in the microhardness (564 and 582.75 HV, respectively). Composites prepared at 1300 degrees C demonstrate the greatest compression strength with comparable results for 5 and 10 wt% CeO2 content (106 and 107 MPa) which are significantly better than those for 1 wt% and those that do not include any CeO2 (90 and below 60 MPa, respectively). The results obtained suggest optimal parameters to be used in preparation of BHA and CeO2 composites, while also highlighting the potential of such materials in several biomedical engineering applications. (C) 2014 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.jmbbm.2014.03.004
dc.identifier.eissn1878-0180
dc.identifier.issn1751-6161
dc.identifier.pubmed24747097
dc.identifier.urihttps://hdl.handle.net/11424/237990
dc.identifier.wosWOS:000336827900008
dc.language.isoeng
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofJOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSintering
dc.subjectMicrostructure
dc.subjectMechanical properties
dc.subjectBovine hydroxyapatite
dc.subjectCerium oxide
dc.subjectBioceramics
dc.subjectMECHANICAL-PROPERTIES
dc.subjectBIOCOMPATIBILITY EVALUATION
dc.subjectLANTHANUM OXIDE
dc.subjectBONE
dc.subjectBHA
dc.subjectMICROSTRUCTURE
dc.subjectWHITLOCKITE
dc.subjectCOATINGS
dc.subjectZIRCONIA
dc.subjectTITANIUM
dc.titlePreparation and evaluation of cerium oxide-bovine hydroxyapatite composites for biomedical engineering applications
dc.typearticle
dspace.entity.typePublication
local.avesis.id357edba0-2e51-42be-8e8f-06005b4fa84d
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.indexed.atPUBMED
local.journal.numberofpages7
oaire.citation.endPage76
oaire.citation.startPage70
oaire.citation.titleJOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
oaire.citation.volume35
relation.isAuthorOfPublication5ba0a0e0-ebae-43a6-855c-0aabb90021f4
relation.isAuthorOfPublication.latestForDiscovery5ba0a0e0-ebae-43a6-855c-0aabb90021f4

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