Fabrication of ceramics by shock compaction of materials prepare

Details Fabrication of ceramics by shock compaction of materials prepare Fabrication of ceramics by shock compaction of materials prepare

1988-12-06

1992-05-19

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Applying explosive force to make article

264 80, C04B 3332

Patent

active

051146452

ABSTRACT:
A method and apparatus for the production of high density, monolithic cerc materials. A mixed powder such as Titanium-Carbon is first subjected to uniaxial pressure to form a green compact. The compact is positioned in a vented mould between two steel plates, reacted by a combustion synthesis process called SHS and then subjected to an explosively generated shockwave by an explosive charge positioned on the upper steel plate, which generates high pressures to compress the hot, porous ceramic to form high purity ceramic of more than 90% theoretical densities.

REFERENCES:
patent: 4655830 (1987-04-01), Akashi et al.

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