Beyond viscosity curves: A critical rheological perspectives
for converging material extrusion additive manufacturing
and powder injection molding

Endlerová, Dagmar; Novák, Martin; Hausnerová, Berenika

dc.title	Beyond viscosity curves: A critical rheological perspectives for converging material extrusion additive manufacturing and powder injection molding	en
dc.contributor.author	Endlerová, Dagmar
dc.contributor.author	Novák, Martin
dc.contributor.author	Hausnerová, Berenika
dc.relation.ispartof	Materials and Design
dc.identifier.issn	1873-4197 Scopus Sources, Sherpa/RoMEO, JCR
dc.identifier.issn	0264-1275 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued	2026
dc.type	preprint
dc.language.iso	en
dc.publisher	Elsevier
dc.identifier.doi	10.1016/j.matdes.2026.116648
dc.relation.uri	https://www.sciencedirect.com/science/article/pii/S0264127526012232
dc.relation.uri	https://www.sciencedirect.com/science/article/pii/S0264127526012232/pdfft?md5=5ae48c3366026a32b47415bffd9f339f&pid=1-s2.0-S0264127526012232-main.pdf
dc.subject	rheology	en
dc.subject	material extrusion	en
dc.subject	powder injection molding	en
dc.subject	viscosity	en
dc.subject	wall slip	en
dc.subject	yield stress	en
dc.description.abstract	Rheological behaviour of highly filled polymer feedstocks critically governs their processability in material extrusion (MEX) additive manufacturing and powder injection molding (PIM). These converging technologies require robust flow control to achieve defect-free, dimensionally accurate parts. Despite extensive rheology-related literature, clear and transferable links between measured properties and process optimization remain scarce. This review summarizes rheological strategies for improving processing of highly filled compounds, with emphasis on maximum packing, wall slip, yield stress, powder-binder segregation and pressure-dependent flow. It also highlights conceptually inconsistent practices, including the widespread use of simple shear-thinning models for structurally complex feedstocks or activation energy evaluated at a constant shear rate. By focusing on a limited set of physically meaningful rheological parameters and their relation to typical processing failures, the review outlines a framework for material selection and formulation optimization in converging MEX and PIM technologies.	en
utb.faculty	Faculty of Technology
dc.identifier.uri	http://hdl.handle.net/10563/1012853
dc.date.accessioned	2026-07-24T05:36:02Z
dc.date.available	2026-07-24T05:36:02Z
dc.rights	Attribution 4.0 International
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/
dc.rights.access	openAccess
utb.ou	Department of Production Engineering
utb.contributor.internalauthor	Endlerová, Dagmar
utb.contributor.internalauthor	Novák, Martin
utb.contributor.internalauthor	Hausnerová, Berenika
utb.fulltext.affiliation	Dagmar Endlerova, Martin Novak, Berenika Hausnerova* 1 Department of Production Engineering, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic *Corresponding author: hausnerova@utb.cz
utb.fulltext.affiliation	Dagmar Endlerova, Martin Novak, Berenika Hausnerova* 1 Department of Production Engineering, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic *Corresponding author: hausnerova@utb.cz
utb.fulltext.affiliation	Dagmar Endlerova, Martin Novak, Berenika Hausnerova* 1 Department of Production Engineering, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic *Corresponding author: hausnerova@utb.cz
utb.fulltext.dates	Received Date: 13 April 2026 Revised Date: 30 May 2026 Accepted Date: 21 July 2026 Available online 22 July 2026
utb.fulltext.dates	Received Date: 13 April 2026 Revised Date: 30 May 2026 Accepted Date: 21 July 2026 Available online 22 July 2026
utb.fulltext.dates	Received Date: 13 April 2026 Revised Date: 30 May 2026 Accepted Date: 21 July 2026 Available online 22 July 2026
utb.fulltext.references	CZ.02.01.01/00/23_021/0010411
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utb.fulltext.sponsorship	This publication was created as part of the implementation of the project Testing laboratory for the implementation of sustainable and resilient technologies, reg. number CZ.02.01.01/00/23_021/0010411, co-financed by the European Union under the OP Jan Amos Comenius.
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utb.fulltext.faculty	Faculty of Technology
utb.fulltext.faculty	Faculty of Technology
utb.fulltext.faculty	Faculty of Technology
utb.fulltext.ou	Department of Production Engineering
utb.fulltext.ou	Department of Production Engineering
utb.fulltext.ou	Department of Production Engineering