Accession Number:

ADA059688

Title:

Scanning Auger Analysis of Fracture Surfaces in Graphite-Aluminum Composites

Descriptive Note:

Imterim rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA IVAN A GETTING LABS

Report Date:

1978-08-25

Pagination or Media Count:

22.0

Abstract:

Graphite-aluminum composites are being considered for numerous applications that require sufficient transverse strength to allow unidirectional fiber orientation for maximum stiffness and dimensional stability. The fiber- matrix bond strength must be maximized in order to achieve the required transverse properties. A recent study of the effect of processing and fiber type on the transverse strength of graphite-aluminum composites indicates that transverse fracture strength is dependent upon the nature of fiber-matrix interaction Ref. 1. The transverse strengths for these composites are in the range 5 to 40 MPa, depending upon the processing method and fiber type. An understanding of the fracture behavior of the interfaces between fiber and matrix is essential before processing improvements can be made to increase transverse composite strength.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Laminates and Composite Materials
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE