Process Reaction forming
Reaction forming (also called reaction-bonded ceramic processing) is used for densifying ceramic materials.
In this process densification is obtained via chemical reaction.
Important applications are reacted-sintered silicon carbide and nitride.

Reaction forming allows for a small amount of dimensional change (shrinkage), but with a large amount of porosity, which results in low strength.

Commonly, a loose compact of solid powder is reacted with a liquid or gas to give the desired ceramic. The reaction starts thanks to heat, and the reactants combine to produce a bonded body.
Category Mass conserving processes, Powder technology
Materials Ceramics
Competing processes Sintering
References Ceramic Matrix Composites
Photo Thomas Nissen (Compuer graphics)
Copyright © 1997-2003 Torben Lenau
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