THE SINTERING PROCESS IN SNOW.

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...

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Bibliographic Details
Main Authors: Ramseier,Rene O., Keeler,Charles M.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1967
Subjects:
Snow
Ice and Permafrost
*SNOW
*ADHESION
*ICE
ADHESION
CRYSTALS
DIFFUSION
EVAPORATION
SURFACE PROPERTIES
ATMOSPHERIC CONDENSATION
METEOROLOGICAL PHENOMENA
CRYSTALLIZATION
MASS TRANSFER
SAMPLING
LOW TEMPERATURE
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0651452
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0651452
Description
Summary: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)

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