On the drag force acting on ceramic particles during processing of cast MMCs

G. Kaptay, Katalin K. Kelemen

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

3 Citations (Scopus)

Abstract

The drag force acting on ceramic particles in liquid metals has been analyzed, mainly in a creep flow regime (Re <0.2). Different corrections to the drag force have been discussed in details due to wall effects. A new theoretical equation has been derived, describing the dependence of the drag force on the volume fraction of the particles. This new theoretical equation has been compared to previous semi-empirical equations in the literature. The equation for the velocity of hindered settling is discussed. Lateral drag force is shortly considered too, acting perpendicular to the direction of the velocity vector of the particle. From the comparison of the lateral drag force and the interracial force acting between the particles, the condition of agglomeration of particles have been established. Particles below a critical size and/or above a critical volume fraction will inevitably agglomerate during sedimentation (floating) in liquid metals.

Original languageEnglish
Title of host publicationProceedings of the TMS Fall Meeting
EditorsP.K. Rothatgi
Pages45-60
Number of pages16
Publication statusPublished - 2000

Fingerprint

Drag
Processing
Liquid metals
Volume fraction
Sedimentation
Creep
Agglomeration

Keywords

  • Concentrated suspensions
  • Drag force
  • Hindered settling
  • Stokes law
  • Wall effect

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kaptay, G., & Kelemen, K. K. (2000). On the drag force acting on ceramic particles during processing of cast MMCs. In P. K. Rothatgi (Ed.), Proceedings of the TMS Fall Meeting (pp. 45-60)

On the drag force acting on ceramic particles during processing of cast MMCs. / Kaptay, G.; Kelemen, Katalin K.

Proceedings of the TMS Fall Meeting. ed. / P.K. Rothatgi. 2000. p. 45-60.

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

Kaptay, G & Kelemen, KK 2000, On the drag force acting on ceramic particles during processing of cast MMCs. in PK Rothatgi (ed.), Proceedings of the TMS Fall Meeting. pp. 45-60.
Kaptay G, Kelemen KK. On the drag force acting on ceramic particles during processing of cast MMCs. In Rothatgi PK, editor, Proceedings of the TMS Fall Meeting. 2000. p. 45-60
Kaptay, G. ; Kelemen, Katalin K. / On the drag force acting on ceramic particles during processing of cast MMCs. Proceedings of the TMS Fall Meeting. editor / P.K. Rothatgi. 2000. pp. 45-60
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