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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202306764
|2 doi
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|a pubmed25n1215.xml
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|a (DE-627)NLM364780525
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|a (NLM)37986661
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Maoyin
|e verfasserin
|4 aut
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|a UV-Curing Assisted Direct Ink Writing of Dense, Crack-Free, and High-Performance Zirconia-Based Composites With Aligned Alumina Platelets
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 01.02.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Additive manufacturing (AM) of high-performance structural ceramic components with comparative strength and toughness as conventionally manufactured ceramics remains challenging. Here, a UV-curing approach is integrated in direct ink writing (DIW), taking advantage from DIW to enable an easy use of high solid-loading pastes and multi-layered materials with compositional changes; while, avoiding drying problems. UV-curable opaque zirconia-based slurries with a solid loading of 51 vol% are developed to fabricate dense and crack-free alumina-toughened zirconia (ATZ) containing 3 wt% alumina platelets. Importantly, a non-reactive diluent is added to relieve polymerization-induced internal stresses, avoid subsequent warping and cracking, and facilitate the de-binding. For the first time, UV-curing assisted DIW-printed ceramic after sintering reveals even better mechanical properties than that processed by a conventional pressing. This is attributed to the aligned alumina platelets, enhancing crack deflection and improving the fracture toughness from 6.8 ± 0.3 MPa m0.5 (compacted) to 7.4 ± 0.3 MPa m0.5 (DIW). The four-point bending strength of the DIW ATZ (1009 ± 93 MPa) is also higher than that of the conventionally manufactured equivalent (861 ± 68 MPa). Besides homogeneous ceramic, laminate structures are demonstrated. This work provides a valuable hybrid approach to additively manufacture tough and strong ceramic components
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|a Journal Article
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|a UV-curing
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|a direct ink writing
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|a laminate structures
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4 |
|a mechanical properties
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| 650 |
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4 |
|a non-reactive diluent
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| 650 |
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4 |
|a platelet alignment
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| 650 |
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4 |
|a zirconia ceramics
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1 |
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|a Huang, Shuigen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Willems, Evita
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Soete, Jeroen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Inokoshi, Masanao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Van Meerbeek, Bart
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vleugels, Jef
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Fei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 5 vom: 14. Feb., Seite e2306764
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:5
|g day:14
|g month:02
|g pages:e2306764
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|u http://dx.doi.org/10.1002/adma.202306764
|3 Volltext
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