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Log-Normal Melt Pulsation in Close-Coupled Gas Atomization

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Abstract

High speed photography coupled with sophisticated image analysis has been used to study low-frequency pulsation during close-coupled gas atomization. At high gas pressure the instantaneous melt delivery is described by two superimposed log-normal distributions, one with a high standard deviation but little melt at the atomizer tip, the second with low standard deviation but more melt at the atomizer tip. At low gas pressures the distribution is better described by a single log-normal distribution.

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Authors and Affiliations

  1. Institute for Materials Research, University of Leeds, Leeds, LS2-9JT, UK

    Andrew M. Mullis (Professor), Robert F. Cochrane (Senior Lecturer) & Ian N. McCarthy (Student)

  2. IRC in Materials Processing, The University of Birmingham, Edgbaston, Birmingham, B15-2TT, UK

    Nicholas J. Adkins (Researcher)

Authors
  1. Andrew M. Mullis
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  2. Robert F. Cochrane
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  3. Ian N. McCarthy
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  4. Nicholas J. Adkins
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Corresponding author

Correspondence to Andrew M. Mullis.

Additional information

Manuscript submitted October 24, 2012.

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Mullis, A.M., Cochrane, R.F., McCarthy, I.N. et al. Log-Normal Melt Pulsation in Close-Coupled Gas Atomization. Metall Mater Trans B 44, 789–793 (2013). https://doi.org/10.1007/s11663-013-9884-y

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  • DOI: https://doi.org/10.1007/s11663-013-9884-y

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