Method for fabricating boron carbide articles

Patent · Tue Oct 31 04:00:00 EST 1978

OSTI ID:5925459

Ardary, Z L

The fabrication of boron carbide articles having length-to-diameter or width ratios greater than 2 to 1 is described. The process consists of hot pressing boron carbide powder into article segments or portions in which the segments have a length-to-diameter or width ratio less than 1.5, aligning a plurality of the initially hot-pressed segments in a hot-pressing die with the end surfaces of the segments placed in intimate contact with one another, and then hot pressing the aligned segments into an article of the desired configuration. The resulting article exhibits essentially uniform density throughout the structure with the bonds between the segments being equivalent in hardness, strength, and density to the remainder of the article.

• Assignee: Dept. of Energy
• Patent Number(s): None
• OSTI ID: 5925459
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CONFIGURATION
DENSITY
DIES
FABRICATION
HARDNESS
HOT PRESSING
JOINING
MATERIALS WORKING
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
POWDERS
PRESSING
SHAPE
YIELD STRENGTH