Accession Number:

AD0712307

Title:

MICROSTRUCTURAL AND FRACTOGRAPHIC STUDIES OF BORON CARBIDE SUBJECTED TO BALLISTIC IMPACT AND STATIC FLEXURAL LOADING

Descriptive Note:

Technical rept.

Corporate Author:

ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA

Personal Author(s):

Report Date:

1970-08-01

Pagination or Media Count:

28.0

Abstract:

Microstructural and fractographic studies were conducted on hot- pressed boron carbide ceramics subjected to ballistic impact by caliber .30 AP M2 projectiles and static flexural loading. A variety of observational techniques were employed, including conventional metallographic and low-power optical examinations, electron microprobe analysis, scanning electron microscopy, and replication electron microscopy. Results suggest that macroscopic topography of fracture-exposed surfaces is indicative of stress states occurring during the fracture event whereas microscopic topography is determined by microstructural constituents, particularly secondary phases, pores, and grain boundaries.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE