Investigation of flow properties of metal powders from narrow particle size distribution to polydisperse mixtures through an improved Hall-flowmeter

N Vlachos, Isaac Chang

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Initially, we critically examined the results provided by the improved Hall-flowmeter, based on bulk volume flow rate, with narrow particle size distribution metal powders (iron, aluminium and copper) of different sizes (fine to coarse) and shapes (nearly spherical to non-spherical). Binary and ternary mixtures of various combinations of fine (100 mu m) metal powders at different size ratios and weight fractions were allowed to discharge from a mass flow hopper. The results show that the mass flow rate of polydisperse mixtures of metal powders is affected by four factors: the size ratio, the volume fraction of the smallest sieved fraction, the initial mass flow rate and the shape of metal powders. (C) 2010 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)71-80
Number of pages10
JournalPowder Technology
Volume205
Issue number1-3
DOIs
Publication statusPublished - 1 Jan 2011

Keywords

  • Particle size distribution
  • Polydisperse mixtures
  • Metal powder
  • Flow properties
  • Hall-flowmeter

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