Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1461869 | Ceramics International | 2014 | 5 Pages |
Abstract
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 556 MPa, much higher than 341 MPa reached by CS-SiC.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Giuseppe Magnani, Alida Brentari, Emiliano Burresi, Giancarlo Raiteri,