THE SINTERING PROCESS IN SNOW.

Abstract

The growth of bonds between snow grains or ice spheres has been variously attributed to surface diffusion, volume diffusion, and evaporation-condensation. To distinguish among these possible mechanisms the unconfined compressive strength of two groups of snow samples was determined as a function of time. One group was allowed to sinter under atmospheric conditions while the other group was kept immersed in silicone oil. The much lower rate of strengthening of the latter group suggests that evaporation-condensation must be the major mechanism of mass transport in snow under atmospheric conditions. The possible magnitudes of the various mass transfer coefficients are discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1967
Accession Number
AD0651452

Entities

People

  • Charles M. Keeler
  • Rene O. Ramseier

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Compressive Strength
  • Condensation
  • Diffusion
  • Evaporation
  • Isothermal Processes
  • Mass Transfer
  • Mechanical Properties
  • Mechanical Working
  • Phase Transformations
  • Sintering
  • Thermodynamic Processes
  • Transport Ships

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Polar and Arctic Studies
  • Theoretical Analysis.