Accession Number:

ADA256328

Title:

Degradation and Failure Modes of Carbon/Bismaleimide Laminates Subjected to a Tropical Exposure

Descriptive Note:

Final rept.

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS

Personal Author(s):

Report Date:

1992-08-01

Pagination or Media Count:

16.0

Abstract:

A scanning electron microscope SEM was used to characterize the degradation of the outermost layers of carbonbismaleimide laminates as the result of exposure to a natural tropical environment. The surface that was exposed to the sun for 4000 hours suffered complete degradation of the bismaleimide matrix to a shallow depth. SEM fractography showed little difference in the appearance of the fibers in a carbonbismaleimide laminate, which displayed considerable fiber pullout compared to fibers in a carbonepoxy laminate, which displayed little pullout.

Subject Categories:

  • Organic Chemistry
  • Laminates and Composite Materials
  • Textiles
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE