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Volume: 33 | Article ID: art00014_1
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Experimental study of filament break-off of dense suspensions
  DOI :  10.2352/ISSN.2169-4451.2017.33.54  Published OnlineNovember 2017
Abstract

Higher particle volume fractions lead to shorter break-off times in filament-stretching measurements, which correlates with higher satellite levels and poorer dot shape when jetted onto a substrate. Suspensions within a certain break-off time range show optimal jetting results. This implies that filament stretching of dense suspensions can be connected to their jetting behaviour, potentially allowing for this technique to be used to predict jetting results. The purpose of this study is to establish a deeper understanding of the break-off process of filaments of dense suspension in order to enable a more repeatable volume deposition of electronic materials, such as conductive adhesives, solder pastes et cetera.

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Gustaf Mårtensson, Fabian Carson, "Experimental study of filament break-off of dense suspensionsin Proc. IS&T Printing for Fabrication: Int'l Conf. on Digital Printing Technologies (NIP33),  2017,  pp 54 - 57,  https://doi.org/10.2352/ISSN.2169-4451.2017.33.54

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