Adhesion of Ice on Aluminum Conductor and Crystal Size in the Surface Layer,

Abstract

Ice accretions of various densities are formed in a wind tunnel on an aluminium cylinder of 3.15 cm diameter. Environmental growth conditions cover the range of icing intensity and ambient temperature which prevail normally in field at situations with glaze and hard rime storms on actual power line conductors. Density, ice crystal dimensions and adhesive strength in brittle conditions of deformation are measured. From the experimental results obtained, it is found that the adhesion of atmospheric ice on a metallic surface depends on its internal structure, mainly the porosity which is related to the density of ice accretion. The adhesive strength depends also upon the mean crystal width in the boundary layer near the conductor surface.

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADP001676

Entities

People

  • Beatrice Felin
  • C. Luan Phan
  • Jean-louis Laforte
  • Richard K. Martin

Organizations

  • UniversitĂ© du QuĂ©bec

Tags

DTIC Thesaurus Topics

  • Adhesion
  • Adhesives
  • Aluminum
  • Boundaries
  • Boundary Layer
  • Diameters
  • Intensity
  • Layers
  • New Hampshire
  • Physical Properties
  • Porosity
  • Wind Tunnels
  • Workshops

Fields of Study

  • Physics

Readers

  • Polar and Arctic Studies
  • Structural Health Monitoring of Composite Structures.
  • Thin Film Deposition Science.