首页|Synthesis and characterization of extremely hard and strong (W,Ti,Ta)C cermet by spark plasma sintering
Synthesis and characterization of extremely hard and strong (W,Ti,Ta)C cermet by spark plasma sintering
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NSTL
Elsevier
? 2022 Elsevier LtdIn this study, spark plasma sintering (SPS) technology was used to prepare (W,Ti,Ta)C cermet. The mechanical properties and microstructure of the (W,Ti,Ta)C cermet under different sintering temperatures, holding times, and sintering pressures were studied by orthogonal experiments, and optimal sintering parameters were obtained. The results show that under a sintering temperature of 1400 °C, holding time of 10 min, and sintering pressure of 30 MPa, the grain size of the cermet was uniform, the relative density was higher, and the mechanical properties were optimal. The Vickers hardness and flexural strength of the cermet were 20.39 ± 0.3 GPa and 1389 ± 35 MPa, respectively. Solid solution strengthening at the grain boundary was shown to improve the interfacial bonding force of the cermet, which is the main reason for the improved flexural strength and fracture toughness of the (W,Ti,Ta)C cermet.
NSTL
Elsevier
