ADHESIVE PROPERTIES OF ICE. PART 2

The results of shear tests on the system ice/stainless steel and ice/ optically flat fused quartz as a function of the rate of shear and roughness of the steel surface are reported. The adhesive strength decreased with decreasing roughness of steel surfaces, and the force-vs-time curves for smooth s...

Full description

Bibliographic Details
Main Author: Jellinek, H. H.
Other Authors: SNOW ICE AND PERMAFROST RESEARCH ESTABLISHMENT WILMETTE IL
Format: Text
Language:English
Published: 1960
Subjects:
Snow
Ice and Permafrost
*ICE
ADHESION
STAINLESS STEEL
SHEAR STRESSES
FRICTION
SURFACE PROPERTIES
QUARTZ
STEEL 1050
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0638344
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0638344
Description
Summary:The results of shear tests on the system ice/stainless steel and ice/ optically flat fused quartz as a function of the rate of shear and roughness of the steel surface are reported. The adhesive strength decreased with decreasing roughness of steel surfaces, and the force-vs-time curves for smooth steel plates resembled those of 2 solids sliding over each other with a liquid layer between. This behavior was especially evident in the case of quartz. The adhesive strength as a function of rate of shear was linear for both ice/ stainless steel and ice/quartz, but there were indications of yield values. The results agree with the assumption of a liquid-like layer on ice. Ratios of viscosity coefficient to layer thickness were evaluated for both systems, and viscosity coefficients are estimated. The importance of interfacial free-energy considerations is pointed out. See also PB-132 565.

Similar Items