Transmission electron microscopical characterization of hot-pressed shocked and unshocked aluminum nitride powder

Conference · Fri Dec 31 23:00:00 EST 1982

OSTI ID:5863687

Carr, M J; Beauchamp, E K

A TEM examination was made of compacts of shocked and unshocked A1N powders subsequently hot pressed at 1730/sup 0/C with ram pressures between 26 and 52 MPa. The microstructures were complex and inhomogeneous. Dislocations produced by the shock persisted into the hot pressing cycle. Both shocked and unshocked samples exhibited dislocation generation and motion in the early part of the hot press cycle.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5863687
• Report Number(s): SAND-83-1610C; CONF-830719-45; ON: DE83017355
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
ELECTRON MICROSCOPY
EXPLOSIVE FORMING
FABRICATION
HOT PRESSING
LINE DEFECTS
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
POWDERS
PRESSING
SILICON COMPOUNDS
SILICON NITRIDES
TRANSMISSION ELECTRON MICROSCOPY