The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.
DLP of Translucent Alumina: In-Depth Investigation on Slurry Development and Debinding Regimes
Open accessAbstract
Exploring the feasibility of producing near-net-shape components with advanced properties and geometrical features via 3D printing has incrementally become the research focus of various studies. Digital light processing (DLP) technology can manufacture complex-structured components for various technical applications. The aims of this research were to investigate Al2O3 ceramic slurry preparation procedures to identify the ideal components to add to an in-house-developed ceramic slurry, to determine the optimal DLP printing parameters and conditions while understanding their effect on the green part properties and to evaluate the appropriate debinding regime to achieve fully dense crack-free fired parts capable of exhibiting translucent behaviours. The slurry obtained from the ball-milled powder at 800 rpm for 1 h, together with 2 wt.% BYK-145 as a dispersant and the highest achievable solid loading of 85 wt.%, showed the desired rheological and photopolymerisation properties. Full-factorial design of experiments (DOE) was employed to study the impact of the printing parameters on the density and the dimensions of the samples. Different debinding regimes were investigated and it was proven that the lowest debinding heat rate (0.2 °C/min) and longer holding times helped to reduce defects and promote densification (>99.0%), providing optimal grounds to obtain translucent fired parts.
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Metadata
- Authors
- De Lisi, M., Shu, C., Attia, U. M., & Essa, K.
- Affiliations
- Department of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK
- University of Birmingham (GB)
- Manufacturing Technology Centre (United Kingdom) (GB)
- Corresponding author
- Essa, Khamis
- Venue
- Machines
- Publisher
- MDPI AG
- Published
- 2023-02-23
- Volume
- 11
- Issue
- 3
- Pages
- 321
- ISSN
- 2075-1702 (ISSN-L)
- OpenAlex
- W4321596725
- Cited by
- 16
- References
- 55
- Citations by year
- 2026: 2 · 2025: 8 · 2024: 6
- FWCI
- 1.16
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Machines (publishedVersion, cc-by)
- University of Birmingham Research Portal (University of Birmingham) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Manufacturing Technology Centre, United Kingdom (881440)
- Topics
- Physical Sciences › Engineering › Industrial and Manufacturing Engineering › Additive Manufacturing and 3D Printing Technologies
- Physical Sciences › Engineering › Building and Construction › Innovations in Concrete and Construction Materials
- Physical Sciences › Materials Science › Ceramics and Composites › Advanced ceramic materials synthesis
- Keywords
- digital light processing, ceramic slurry, 3D printing of ceramics, debinding, dispersants, slurry rheology, photopolymerization, printing parameters, densification, alumina
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- De Lisi, M., Shu, C., Attia, U. M., & Essa, K. (2023). DLP of Translucent Alumina: In-Depth Investigation on Slurry Development and Debinding Regimes. Machines. https://doi.org/10.3390/machines11030321
