Microencapsulated Fluorescent Dye Penetrant.

Abstract

Microencapsulated fluorescent dye pentrant materials were evaluated for feasibility as a technique to detect cracks on metal surfaces when applied as a free flowing dry powder. Various flourescent dye solutions in addition to a commercial penetrant (Zyglo ZL-30) were microencapsulated and tested on nondestructive inspection crack standards. The material could be applied dry with standard spray apparatus, and removed by blowing air, vacuum or with a detergent water mixture. Indications of cracks 0.5 microns in width or larger could be visually observed in the tests conducted to date. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1979
Accession Number
ADA076183

Entities

People

  • S. Allinikov

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Counter IED

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Air Force Facilities
  • Air Pressure
  • Cracks
  • Drug Abuse
  • Dyes
  • Electron Microscopes
  • Fluids
  • Fluorescent Dyes
  • Government Procurement
  • Laboratory Equipment
  • Materials
  • Materials Laboratories
  • Microcapsules
  • Scanning Electron Microscopes
  • Spray Guns

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Environmental Engineering
  • Structural Health Monitoring of Composite Structures.