Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10155493 | Journal of the European Ceramic Society | 2018 | 6 Pages |
Abstract
A novel non-destructive space-resolved method for studying binder burnout is presented. Debinding of dry pressed zinc oxide green bodies was analyzed by neutron imaging. Neutrons in contrast to X-rays allow penetrating samples with large dimensions up to 80âmm and at the same time detecting variations in the organics content as small as 0.1âwt%. We used neutron radiography (2D) and tomography (3D) to investigate with a spatial resolution in the order of 100âμm the distribution of binder during burnout under three different conditions. First a reference case with green bodies placed on a plate in a lab furnace. Second, a configuration with a reduced volume of air with green bodies enclosed in a sagger and third a green body placed on an improved supporting structure. The method is extendable to other particulate materials and green bodies shaped by processes involving organic binder such as casting, extrusion and injection.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lise Donzel, David Mannes, Michael Hagemeister, Eberhard Lehmann, Jan Hovind, Nikolay Kardjilov, Christian Grünzweig,