3D printing of high solid loading zirconia feedstock via screw-based material extrusion
Zirconia 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 therma...
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Elsevier Ltd
2024
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| author | Lim I.Y. Ting C.H. Ng C.K. Tey J.Y. Yeo W.H. S R. Lee K.Y.S. Chuah Y.D. Teng W.D. |
| author2 | 58203510000 |
| author_facet | 58203510000 Lim I.Y. Ting C.H. Ng C.K. Tey J.Y. Yeo W.H. S R. Lee K.Y.S. Chuah Y.D. Teng W.D. |
| author_sort | Lim I.Y. |
| building | UNITEN Library |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Zirconia 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, respectively |
| format | Article |
| id | my.uniten.dspace-34142 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2024 |
| publisher | Elsevier Ltd |
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| spelling | my.uniten.dspace-341422024-10-14T11:18:08Z 3D printing of high solid loading zirconia feedstock via screw-based material extrusion Lim I.Y. Ting C.H. Ng C.K. Tey J.Y. Yeo W.H. S R. Lee K.Y.S. Chuah Y.D. Teng W.D. 58203510000 57193357476 57190445131 56042122900 26024539700 57195516031 57221177925 36561357900 36855788900 Additive manufacturing Debinding defects Mechanical properties ZrO<sub>2</sub> feedstock 3D printing Ductile fracture Extrusion Fracture toughness Grain growth Organic solvents Paraffins Screws Sintering Vickers hardness X ray diffraction Zirconia 3-D printing 3D-printing Debinding Debinding defect High solid loading Solid loading Vicker hardness XRD Zirconia ceramic ZrO2 feedstock Feedstocks Zirconia 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, respectively while 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. Final 2024-10-14T03:18:08Z 2024-10-14T03:18:08Z 2023 Article 10.1016/j.ceramint.2023.05.011 2-s2.0-85159139157 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85159139157&doi=10.1016%2fj.ceramint.2023.05.011&partnerID=40&md5=a294f7b0606e1c9b29ddd1a51c20567f https://irepository.uniten.edu.my/handle/123456789/34142 49 15 24852 24860 Elsevier Ltd Scopus |
| spellingShingle | Additive manufacturing Debinding defects Mechanical properties ZrO<sub>2</sub> feedstock 3D printing Ductile fracture Extrusion Fracture toughness Grain growth Organic solvents Paraffins Screws Sintering Vickers hardness X ray diffraction Zirconia 3-D printing 3D-printing Debinding Debinding defect High solid loading Solid loading Vicker hardness XRD Zirconia ceramic ZrO2 feedstock Feedstocks Lim I.Y. Ting C.H. Ng C.K. Tey J.Y. Yeo W.H. S R. Lee K.Y.S. Chuah Y.D. Teng W.D. 3D printing of high solid loading zirconia feedstock via screw-based material extrusion |
| title | 3D printing of high solid loading zirconia feedstock via screw-based material extrusion |
| title_full | 3D printing of high solid loading zirconia feedstock via screw-based material extrusion |
| title_fullStr | 3D printing of high solid loading zirconia feedstock via screw-based material extrusion |
| title_full_unstemmed | 3D printing of high solid loading zirconia feedstock via screw-based material extrusion |
| title_short | 3D printing of high solid loading zirconia feedstock via screw-based material extrusion |
| title_sort | 3d printing of high solid loading zirconia feedstock via screw-based material extrusion |
| topic | Additive manufacturing Debinding defects Mechanical properties ZrO<sub>2</sub> feedstock 3D printing Ductile fracture Extrusion Fracture toughness Grain growth Organic solvents Paraffins Screws Sintering Vickers hardness X ray diffraction Zirconia 3-D printing 3D-printing Debinding Debinding defect High solid loading Solid loading Vicker hardness XRD Zirconia ceramic ZrO2 feedstock Feedstocks |
| url_provider | http://dspace.uniten.edu.my/ |