Accession Number:

ADA252182

Title:

Particle Emission and Charging Effects Induced by Fracture

Descriptive Note:

Final rept. 1 Jun 1987-30 Jun 1992

Corporate Author:

WASHINGTON STATE UNIV PULLMAN

Personal Author(s):

Report Date:

1992-06-30

Pagination or Media Count:

16.0

Abstract:

We summarize three research areas that have focused on surface dynamics associated with fracture and UV laser bombardment of materials. These studies have been based on our capabilities to a detect and characterize particle release from surfaces on fast time scales, and b to obtain high resolution topographical information utilizing scanning tunneling and atomic force microscopy. Three principle areas of study have been fracto-emission, scanning tunneling microscopy studies of fracture surfaces of crystals and polymers, and UV laser interactions with surfaces. These studies have focused on the examination of the energetic processes accompanying fracture, particularly those involving heat generating mechanisms such as dislocation motion and plastic deformation, phenomena at interfaces often involving charge transfer processes, and high energy UV lasers interacting with inorganic and organic materials.

Subject Categories:

  • Plastics
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE