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3D printing of high solid loading zirconia feedstock via screw-based material extrusion

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dc.citedby6
dc.contributor.authorLim I.Y.en_US
dc.contributor.authorTing C.H.en_US
dc.contributor.authorNg C.K.en_US
dc.contributor.authorTey J.Y.en_US
dc.contributor.authorYeo W.H.en_US
dc.contributor.authorS R.en_US
dc.contributor.authorLee K.Y.S.en_US
dc.contributor.authorChuah Y.D.en_US
dc.contributor.authorTeng W.D.en_US
dc.contributor.authorid58203510000en_US
dc.contributor.authorid57193357476en_US
dc.contributor.authorid57190445131en_US
dc.contributor.authorid56042122900en_US
dc.contributor.authorid26024539700en_US
dc.contributor.authorid57195516031en_US
dc.contributor.authorid57221177925en_US
dc.contributor.authorid36561357900en_US
dc.contributor.authorid36855788900en_US
dc.date.accessioned2024-10-14T03:18:08Z
dc.date.available2024-10-14T03:18:08Z
dc.date.issued2023
dc.description.abstractZirconia ceramic (3Y-TZP) feedstocks with solid loadings from 50 vol% to 68 vol%, in a 60:40 paraffin wax to LDPE ratio binder system, were prepared and printed using a screw-based material extrusion printer. A two-step debinding process involving solvent debinding (cyclohexane + ethanol) and thermal debinding (140 �C�600 �C at 0.2 �C/min) followed by sintering at 1500 �C for 2 h was employed. Tests performed include TGA, density test, Vickers hardness and fracture toughness, XRD, and SEM. The TGA result showed two significant drops in weight starting at 180 �C and 380 �C, which corresponds to the decomposition of paraffin wax and LDPE, respectively. A minimum of 40 wt% of soluble binder was removed from the green sample after solvent immersion for 3 h at 40 �C for solid loadings ?55 vol%. High solid loading feedstocks produced samples with comparable density, Vickers hardness and fracture toughness, which are 97.5%, ?12.3 GPa, and ?5.5 MPa m1/2, respectivelyen_US
dc.description.abstractwhile XRD and SEM shows no adverse tetragonal to monoclinic phase transformation and grain growth, respectively. This study demonstrates that 3D printing of granular 3Y-TZP ceramic feedstock via screw-based material extrusion technique is feasible even with high solid loadings, which is usually difficult to fabricate into flexible filaments and print due to high viscosity. � 2023 Elsevier Ltd and Techna Group S.r.l.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.ceramint.2023.05.011
dc.identifier.epage24860
dc.identifier.issue15
dc.identifier.scopus2-s2.0-85159139157
dc.identifier.spage24852
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85159139157&doi=10.1016%2fj.ceramint.2023.05.011&partnerID=40&md5=a294f7b0606e1c9b29ddd1a51c20567f
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/34142
dc.identifier.volume49
dc.pagecount8
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleCeramics International
dc.subjectAdditive manufacturing
dc.subjectDebinding defects
dc.subjectMechanical properties
dc.subjectZrO<sub>2</sub> feedstock
dc.subject3D printing
dc.subjectDuctile fracture
dc.subjectExtrusion
dc.subjectFracture toughness
dc.subjectGrain growth
dc.subjectOrganic solvents
dc.subjectParaffins
dc.subjectScrews
dc.subjectSintering
dc.subjectVickers hardness
dc.subjectX ray diffraction
dc.subjectZirconia
dc.subject3-D printing
dc.subject3D-printing
dc.subjectDebinding
dc.subjectDebinding defect
dc.subjectHigh solid loading
dc.subjectSolid loading
dc.subjectVicker hardness
dc.subjectXRD
dc.subjectZirconia ceramic
dc.subjectZrO2 feedstock
dc.subjectFeedstocks
dc.title3D printing of high solid loading zirconia feedstock via screw-based material extrusionen_US
dc.typeArticleen_US
dspace.entity.typePublication
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