Accession Number:

ADA248737

Title:

Effect of Whisker Orientation on the Mechanical Properties of Silicon Carbide/Alumina Composites

Descriptive Note:

Interim rept. Oct 1990-Sep 1991

Corporate Author:

NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SHIP MATERIALS ENGINEERING DEPT

Personal Author(s):

Report Date:

1992-03-01

Pagination or Media Count:

25.0

Abstract:

Silicon carbide whisker and alumina composites were processed with and without concurrent application of an external electric field in order to orient the whiskers in the composites. Both the flexural strength and the fracture toughness of the composites were measured. The results suggest that the application of electric field improves the whisker orientation of the sintered composites. However, the improvement in the improvement in the mechanical properties of the composites due to the orientation of the dispersed whiskers is not very significant 9-12. Samples processed from flocculated suspensions produce poorly dispersed microstructure.

Subject Categories:

  • Inorganic Chemistry
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE