Improved consolidation of silicon carbide

Conference · Fri Aug 01 04:00:00 EDT 1986 · Ceram. Eng. Sci. Proc.; (United States)

OSTI ID:6909966

Freedman, M R; Millard, M L

Alpha silicon carbide powder was consolidated by both dry and wet methods. Dry pressing in a double acting steel die yielded sintered test bars with an average flexural strength of 235.6 MPa with a critical flaw size of approximately 100 micro m. An aqueous slurry pressing technique produced sintered test bars with an average flexural strength of 440.8 MPa with a critical flaw size of approximately 25 micro m. Image analysis revealed a reduction in both pore area and pore size distribution in the slurry pressed sintered test bars. The improvements in the slurry pressed material properties are discussed in terms of reduced agglomeration and improved particle packing during consolidation. 16 references.

• OSTI ID: 6909966
• Report Number(s): CONF-860152-
• Conference Information: Journal Name: Ceram. Eng. Sci. Proc.; (United States) Journal Volume: 7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
AQUEOUS SOLUTIONS
CARBIDES
CARBON COMPOUNDS
DENSITY
DIES
DISPERSIONS
FABRICATION
MATERIALS WORKING
MIXTURES
PARTICLE SIZE
PHYSICAL PROPERTIES
PRESSING
SILICON CARBIDES
SILICON COMPOUNDS
SINTERING
SIZE
SLURRIES
SOLUTIONS
SUSPENSIONS
VISCOSITY