TY - JOUR AU - MAGNANI, G. AU - GALVAGNO, S. AU - SICO, G. AU - PORTOFINO, S. AU - FREDA, C. AU - BURRESI, E. PY - 2016 TI - Sintering and mechanical properties of β-SiC powder obtained from waste tires JO - Journal of Advanced Ceramics SN - 2226-4108 SP - 40 EP - 46 VL - 5 IS - 1 AB - Plasma synthesized SiC powder obtained from quartz and carbonaceous residue of waste tires was successfully sintered at 1925 ℃ by pressureless liquid-phase method using yttria and alumina as sintering aids (T-SiC). Comparison with sintered SiC obtained from commercial powder (C-SiC) put in evidence of similar sintered density (98%T.D.), but much finer microstructure of T-SiC than that of C-SiC. T-SiC also showed higher flexural strength than C-SiC both at room temperature (508 vs. 458 MPa) and at 1500 ℃ (280 vs. 171 MPa). Difference in liquid phase was responsible for the differences in hardness and fracture toughness. The high value of the Young’s modulus of T-SiC (427 MPa) confirmed the high degree of sinterability of this powder and that it can be a promising candidate for structural applications with high added value. UR - https://doi.org/10.1007/s40145-015-0170-0 DO - 10.1007/s40145-015-0170-0