Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting
Abstract This 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....
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2021-01-01
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Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-021-81861-w |
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doaj-327d59cd30794908935fc81f9efb9d432021-01-31T16:20:15ZengNature Publishing GroupScientific Reports2045-23222021-01-0111111110.1038/s41598-021-81861-wNovel hybrid method to additively manufacture denser graphite structures using Binder JettingVladimir Popov0Alexander Fleisher1Gary Muller-Kamskii2Andrei Shishkin3Alexander Katz-Demyanetz4Nahum Travitzky5Saurav Goel6Israel Institute of Metals, Technion, Israel Institute of TechnologyIsrael Institute of Metals, Technion, Israel Institute of TechnologyIsrael Institute of Metals, Technion, Israel Institute of TechnologyRudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical UniversityIsrael Institute of Metals, Technion, Israel Institute of TechnologyDepartment of Materials Science and Engineering, Institute of Glass and Ceramics, University of Erlangen-NurembergSchool of Engineering, London South Bank UniversityAbstract This 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.https://doi.org/10.1038/s41598-021-81861-w |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vladimir Popov Alexander Fleisher Gary Muller-Kamskii Andrei Shishkin Alexander Katz-Demyanetz Nahum Travitzky Saurav Goel |
spellingShingle |
Vladimir Popov Alexander Fleisher Gary Muller-Kamskii Andrei Shishkin Alexander Katz-Demyanetz Nahum Travitzky Saurav Goel Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting Scientific Reports |
author_facet |
Vladimir Popov Alexander Fleisher Gary Muller-Kamskii Andrei Shishkin Alexander Katz-Demyanetz Nahum Travitzky Saurav Goel |
author_sort |
Vladimir Popov |
title |
Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting |
title_short |
Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting |
title_full |
Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting |
title_fullStr |
Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting |
title_full_unstemmed |
Novel hybrid method to additively manufacture denser graphite structures using Binder Jetting |
title_sort |
novel hybrid method to additively manufacture denser graphite structures using binder jetting |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2021-01-01 |
description |
Abstract This 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. |
url |
https://doi.org/10.1038/s41598-021-81861-w |
work_keys_str_mv |
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