Metallographic Specimen Preparation

CLASS 11 - VERY HARD BRITTLE MATERIALS, CERMETS (Tungsten Carbide)

Examples include cermets such as tungsten carbide, glass and minerals.

Description:
CERMET’s are wear resistant, tough materials.

Preparation Challenge:
The key to proper specimen preparation of CERMET materials such as tungsten carbide is to grind with a semi-fixed abrasive (polycrystalline diamond on a metal mesh cloth), followed by combining diamond abrasives with a CMP (chemical mechanical polishing) abrasive such as SIAMAT™ colloidal silica.