About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Comparison of Nanopowder and Granulated Powder in Compaction-assisted Binder Jetting |
Author(s) |
Md Shakil Arman, Guanxiong Miao, Zhijian Pei, Chao Ma |
On-Site Speaker (Planned) |
Md Shakil Arman |
Abstract Scope |
In this study, nanopowder and granulated powder were compared in compaction-assisted binder jetting. From raw alumina nanopowder, granulated powder was prepared through spray freeze drying. Green samples were prepared from each powder with a lab-built machine which replicated the compaction-assisted binder jetting process. Then the samples were sintered in a furnace. Green density, sintered density, and sintered microstructure were analyzed using geometric method, Archimedes method, and scanning electron microscopy, respectively. The results shown that the granulated powder yielded samples with higher green density, higher sintered density, and fewer pores in sintered microstructure under the same compaction conditions. So, granulation can be an effective way to improve density in compaction-assisted binder jetting. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |