Optimal Stator Design for Oxide Films Shearing Found by Physical Modelling

  • Agnieszka DybalskaEmail author
  • Dmitry G. Eskin
  • Jayesh B. Patel
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


A new technology suggests breaking oxide films into small fragments or particles to play the role of a grain refiner. A high-shear mixer (HSM) with a rotor-stator impeller can produce mechanical breakage. Physical modelling with powders demonstrates the defragmentation potency of HSM. Optimisation methods are considered and a new design of HSM is proposed according to the experimental findings. This design improves the uniformity of mixing in the pseudo-cavern volume and exhibits the dispersion efficiency better than the design previously used. The understanding and development of high shear technology for processing of liquid metals is of great interest to the industry.


Liquid metal High shear Rotor-stator Pseudo-cavern Defragmentation Stator design 



Allocation of the equipment in the BCAST (Brunel University London) is highly appreciated. The first author is grateful for Ph.D. study funding from the Institute of Materials and Manufacturing, Brunel University London. The authors would also like to acknowledge Prof. Z. Fan, who initiated this research. The PIV measuring system was provided by the EPSRC Engineering Instrument Pool.


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Agnieszka Dybalska
    • 1
    Email author
  • Dmitry G. Eskin
    • 1
  • Jayesh B. Patel
    • 1
  1. 1.BCAST, Brunel University LondonUxbridgeUK

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