Preparation and investigation of ultrafine-grained tungsten carbide with high hardness and fracture toughness
Abstract
High-density samples of ultrafine-grained tungsten carbide with high hardness (up to 31–34 GPa) and increased fracture toughness (up to 5.2–6.4 MPa m1/2) are obtained using the technology of electropulse plasma sintering. The influence of the initial size of nanoparticles of α-WC prepared by plasmachemical synthesis on the density, structural parameters, and mechanical properties of tungsten carbide is investigated.
- Publication:
-
Physics - Doklady
- Pub Date:
- July 2015
- DOI:
- 10.1134/S1028335815070095
- Bibcode:
- 2015DokPh..60..288C
- Keywords:
-
- Tungsten Carbide;
- Spark Plasma Sinter;
- DOKLADY Physic;
- Initial Particle Size;
- High Heat Rate