Accession Number:

ADA110780

Title:

Surface Enhancement of Silicon Carbide Filament for Metal Matrix Composites.

Descriptive Note:

Summary rept.,

Corporate Author:

AVCO SPECIALTY MATERIALS DIV LOWELL MA

Personal Author(s):

Report Date:

1981-01-01

Pagination or Media Count:

19.0

Abstract:

The first years efforts on this program were aimed at understanding the mechanisms of strengthening and degradation of SiC filament. Filaments were provided for analysis here in part by Avco IRAD and other related programs listed at the end of this report. The specific objectives were 1 Devise a model for filament strengtheningdegradation effects due to the presence of surface layers or coatings on a brittle ceramic filament 2 Determine properties of the carbon rich layer and propose mechanisms for filament strengthening and 3 Utilizing the above model and mechanisms, analyze alternative surfaces that can potentially provide surface strengthening, resist strength degradation in molten Al, and bond with Al alloys during casting, hot molding or diffusion bonding operations.

Subject Categories:

  • Laminates and Composite Materials
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE