Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting.

Journal article


Popov, V., Fleisher, A., Muller-Kamskii, G., Shishkin, A., Katz-Demyanetz, A., Travitzky, N. and Goel, S. (2021). Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting. Scientific Reports. 11 (1), p. 2438. https://doi.org/10.1038/s41598-021-81861-w
AuthorsPopov, V., Fleisher, A., Muller-Kamskii, G., Shishkin, A., Katz-Demyanetz, A., Travitzky, N. and Goel, S.
AbstractThis study introduces two hybrid processes integrating an additive manufacturing technique with post-processing treatments namely (i) Binder Jetting Printing (BJP) + Cold Isostatic Pressing (CIP) + cycle and (ii) BJP + cycle where cycle refers to a sequence of Impregnation-Drying-Pyrolysis. These two new processes yielded additively manufactured parts with higher density and reduced defects/porosities. As a testbed, we used these new processes to fabricate graphite structures. The samples produced by both methods were compared with each other and benchmarked to the samples produced by (a) BJP alone and (b) Traditional uniaxial pressing like compaction moulding. Various characterisation methods were used to investigate the microstructure and mechanical properties which showed that the porosity of hybrid manufactured samples reduces from 55% to a record 7%. This technological pathway is expected to create a new avalanche of industrial applications that are hitherto unexplored in the arena of hybrid additive manufacturing with BJP method.
Year2021
JournalScientific Reports
Journal citation11 (1), p. 2438
PublisherSpringer
ISSN2045-2322
Digital Object Identifier (DOI)https://doi.org/10.1038/s41598-021-81861-w
FunderEuropean Regional Development Fund
UK Research and Innovation
European Cooperation in Science and Technology
Royal Academy of Engineering
Publication dates
Online28 Jan 2021
Publication process dates
Accepted06 Jan 2021
Deposited22 Feb 2021
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