THE BRITTLE FRACTURE OF NON-METALS.

Abstract

A metallographic study has been made of the room-temperature deformation of Ge, Al2O3, and Tic, using both optical and electron microscopy. Examination of microhardness impressions provides strong evidence that dislocation motion can occur in these materials at room temperature. However, extensive studies of the fracture of Ge bend testpieces indicate that dislocations play no significant role in the fracture process and that failure is completely brittle. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1966
Accession Number
AD0802241

Entities

People

  • E. N. Pugh

Organizations

  • Martin Marietta

Tags

DTIC Thesaurus Topics

  • Dislocations
  • Electron Microscopy
  • Electrons
  • Materials
  • Microhardness
  • Microscopy
  • Optical Analysis

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics