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Adding a small amount of vanadium carbide as sintering aids, nearly fully dense ZrB 2 –SiC composites were obtained by pressureless sintering methods at 2000–2100°C. Thermodynamic calculations and experimental results proved that VC is better at removing the surface oxide impurities of ZrB 2 than WC, and played a very important role during the densification process. The mechanical...
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