UTILITY OF THE STAGNANT FILM CONCEPT OF MASS TRANSFER IN CRYSTAL GROWTH,

Abstract

Crystal growth generates a flow of material toward and through the crystal surface. An investigation is made of the effect of this interfacial flow on the thickness of the imaginary stagnant layer of fluid through which mass transfer must take place. The film thickness is found to be relatively independent of interfacial flow for laminar-free convection of a liquid on a vertical flat plate and for a rotating disk in a gas. It varies significantly, however, for other situations, especially with laminar-forced convection of a gas over a flat plate. Mass-transfer calculations, taking into account interfacial flow, are outlined for solution crystal growth and for controlled solidification. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1967
Accession Number
AD0664061

Entities

People

  • William R. Wilcox

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Convection
  • Crystal Growth
  • Crystals
  • Isothermal Processes
  • Mass Transfer
  • Materials
  • Phase Transformations
  • Solidification
  • Thermodynamic Processes
  • Thickness

Readers

  • Fluid Dynamics.
  • Materials Science and Engineering.