Rheological Behaviour of Bronze Feedstocks at Low Shear Rates

Christian Kukla, Ivica Duretek, Joamin Gonzalez-Gutierrez, Clemens Holzer

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Rheology is a key factor for the production of high quality PIM parts, characterization of feedstocks themselves and reliable results of numerical simulation of the PIM process. Rotational rheometry is among the common techniques for characterising the flow properties of thermoplastic materials. In comparison to thermoplastics the PIM feedstocks have their own specific rheological behaviour. Furthermore the effects such as e.g. yield stress, wall slip, phase separation, and pre-shearing can also have a significant effect on the flow behaviour, the accuracy of the measurement and thus on related results of injection moulding simulation. n this work the difficulties at rheological measurements on commercial bronze feedstock at low shear rates (< 500 s-1) are shown and discussed. The steady and oscillatory shear tests have been done on a rotational rheometer using the plate and plate geometry with the standard smooth and special profiled surface. better understanding of feedstock behaviour; better quality of parts; improved modelling
Original languageEnglish
Title of host publication Euro PM2015 Congress Proceedings
Place of PublicationReims, France
PublisherEuropean Powder Metallurgy Association
Number of pages6
ISBN (Electronic)978-1-899072-47-7
Publication statusPublished - 14 Sept 2015
EventEuro PM2015 - Congress & Exhibition - Congress Centre, Reims, France
Duration: 4 Oct 20157 Oct 2015


ConferenceEuro PM2015 - Congress & Exhibition


  • bronze feedstock
  • parallel-plate rheometry
  • texturized parallel-plate

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