Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process
Evolution of additively manufactured (AM) ceramics’ microstructure between manufacturing stages is a hardly explored topic. These data are of high demand for advanced numerical modeling. In this work, 3D microstructural models of Al<sub>2</sub>O<sub>3</sub> greenbody, brownbo...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/18/3928 |
| _version_ | 1797554486992961536 |
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| author | Svyatoslav Chugunov Nikolaus A. Adams Iskander Akhatov |
| author_facet | Svyatoslav Chugunov Nikolaus A. Adams Iskander Akhatov |
| author_sort | Svyatoslav Chugunov |
| collection | DOAJ |
| description | Evolution of additively manufactured (AM) ceramics’ microstructure between manufacturing stages is a hardly explored topic. These data are of high demand for advanced numerical modeling. In this work, 3D microstructural models of Al<sub>2</sub>O<sub>3</sub> greenbody, brownbody and sintered material are presented and analyzed, for ceramic samples manufactured with SLA-based AM workflow, using a commercially available ceramic paste and 3D printer. The novel data, acquired at the micro- and mesoscale, using Computed Tomography (CT), Scanning Electron Microscopy (SEM) and Focused Ion-Beam SEM (FIB/SEM) techniques, allowed a deep insight into additive ceramics characteristics. We demonstrated the spatial 3D distribution of ceramic particles, an organic binder and pores at every stage of AM workflow. The porosity of greenbody samples (1.6%), brownbody samples (37.3%) and sintered material (4.9%) are analyzed. Pore distribution and possible originating mechanisms are discussed. The location and shape of pores and ceramic particles are indicative of specific physical processes driving the ceramics manufacturing. We will use the presented microstructural 3D models as input and verification data for advanced numerical simulations developed in the project. |
| first_indexed | 2024-03-10T16:32:46Z |
| format | Article |
| id | doaj.art-66b0ae53b5644397bc40ffeef3b48e2d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:32:46Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-66b0ae53b5644397bc40ffeef3b48e2d2023-11-20T12:41:18ZengMDPI AGMaterials1996-19442020-09-011318392810.3390/ma13183928Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing ProcessSvyatoslav Chugunov0Nikolaus A. Adams1Iskander Akhatov2Center for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 30/1 Bolshoi Boulevard, 121205 Moscow, RussiaDepartment of Mechanical Engineering, Technical University of Munich, Boltzmannstrasse 15, 85747 Garching, GermanyCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 30/1 Bolshoi Boulevard, 121205 Moscow, RussiaEvolution of additively manufactured (AM) ceramics’ microstructure between manufacturing stages is a hardly explored topic. These data are of high demand for advanced numerical modeling. In this work, 3D microstructural models of Al<sub>2</sub>O<sub>3</sub> greenbody, brownbody and sintered material are presented and analyzed, for ceramic samples manufactured with SLA-based AM workflow, using a commercially available ceramic paste and 3D printer. The novel data, acquired at the micro- and mesoscale, using Computed Tomography (CT), Scanning Electron Microscopy (SEM) and Focused Ion-Beam SEM (FIB/SEM) techniques, allowed a deep insight into additive ceramics characteristics. We demonstrated the spatial 3D distribution of ceramic particles, an organic binder and pores at every stage of AM workflow. The porosity of greenbody samples (1.6%), brownbody samples (37.3%) and sintered material (4.9%) are analyzed. Pore distribution and possible originating mechanisms are discussed. The location and shape of pores and ceramic particles are indicative of specific physical processes driving the ceramics manufacturing. We will use the presented microstructural 3D models as input and verification data for advanced numerical simulations developed in the project.https://www.mdpi.com/1996-1944/13/18/3928microstructurealuminum oxidestereolithography3D printinggreenbodydebinding |
| spellingShingle | Svyatoslav Chugunov Nikolaus A. Adams Iskander Akhatov Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process Materials microstructure aluminum oxide stereolithography 3D printing greenbody debinding |
| title | Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process |
| title_full | Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process |
| title_fullStr | Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process |
| title_full_unstemmed | Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process |
| title_short | Evolution of SLA-Based Al<sub>2</sub>O<sub>3</sub> Microstructure During Additive Manufacturing Process |
| title_sort | evolution of sla based al sub 2 sub o sub 3 sub microstructure during additive manufacturing process |
| topic | microstructure aluminum oxide stereolithography 3D printing greenbody debinding |
| url | https://www.mdpi.com/1996-1944/13/18/3928 |
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