Author/Authors :
Moshtaghioun، نويسنده , , Bibi Malmal and Cumbrera-Hernلndez، نويسنده , , Francisco Luis and Gَmez-Garcيa، نويسنده , , Diego and de Bernardi-Martيn، نويسنده , , Santiago and Domيnguez-Rodrيguez، نويسنده , , Arturo and Monshi، نويسنده , , Ahmad and Abbasi، نويسنده , , Mohammad Hasan، نويسنده ,
Abstract :
Spark plasma sintering (SPS) parameters are reported to have a remarkable effect on microstructure and fracture toughness of boron carbide. Fully dense fine-grained boron carbide samples have been sintered by SPS at 1700 °C for 3 min as optimal conditions. Both temperature and the current density applied during sintering seem to be important parameters for fully dense output and can induce significant changes on the final microstructure. The initial grain size of the powder is a crucial factor to perform fine-grained fully dense specimens. The improvement on room-temperature hardness and toughness is discussed.
