Accession Number:

ADA076183

Title:

Microencapsulated Fluorescent Dye Penetrant.

Descriptive Note:

Final rept. Oct 77-Jan 79,

Corporate Author:

AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1979-07-01

Pagination or Media Count:

35.0

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

Subject Categories:

  • Coatings, Colorants and Finishes
  • Fabrication Metallurgy
  • Test Facilities, Equipment and Methods
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE