E-viri
Recenzirano
-
Magnani, Giuseppe; Brentari, Alida; Burresi, Emiliano; Raiteri, Giancarlo
Ceramics international, January 2014, 2014-1-00, Letnik: 40, Številka: 1Journal Article
The Two-step sintering (TSS) method was applied to the pressureless sintering of commercial silicon carbide powder doped with boron and carbon. The microstructural and mechanical properties of TSS-SiC were compared to those of sintered SiC obtained with the conventional thermal cycle (CS-SiC). TSS-SiC was densified (97.7% T.D.) at 2050°C instead of 2200°C needed for CS-SiC (97% T.D.). Furthermore, TSS-SiC showed finer microstructure and enhanced mechanical properties. In particular, flexural strength of the TSS-SiC materials greatly increased up to 556MPa, much higher than 341MPa reached by CS-SiC.
