Microstructure, Mechanical and Wear Properties of W-Si-C Composites Consolidated by Spark Plasma Sintering

W-Si-C composites with high relative densities and good mechanical wear properties were successfully prepared by spark plasma sintering. The influence of SiC content on the density, microstructure, characteristics was investigated. results indicated that reaction between W at their interface produced W2C W5Si3. also reacted oxygen impurities grain boundary to form SiO2. purification boundaries carried out SiO2 synthesis. Reactive sintering reduces free energy system facilitates densification process composites. This in a significant increase density composites, which reaches maximum 98.12%, higher than 94.32% pure tungsten. hardness significantly increases from 4.33 GPa 8.40 when is 2 wt% compared tungsten due generation hard ceramic phase density. resistance improved little addition. rate decreased 313.27 × 10−3 mm3/N·m 5.71 W-0.5 SiC. SEM analyses revealed dominant mechanism attributed fatigue wear, while abrasive wear.