Fabrication of In Situ TiBCSi Composite by Hot-Press Sintering
Abstract
An attempt has been made to synthesize TiBSiC composite using titanium, silicon carbide, and boron carbide as the raw materials by hot-press sintering. The TiBSiC bulk composite with a high hardness (20.5 GPa) and high compressive strength (2010 MPa), with more than 99.1% density of theoretical value, has been successfully synthesized by the hot-press sintering. The composite was found to consist of fine TiB2, TiC, and Ti3SiC2 using XRD analysis. SEM and EDX analyses showed uniform distribution of phases and an average grain size of around 2-3 μm. Nanoindentation studies showed the modulus of the composite is about 448 GPa.
- Publication:
-
Journal of Materials Engineering and Performance
- Pub Date:
- March 2013
- DOI:
- 10.1007/s11665-012-0341-x
- Bibcode:
- 2013JMEP...22..651X
- Keywords:
-
- hot-press sintering;
- mechanical properties;
- microstructure;
- titanium-based composite