| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Light Elements Technology
|
| Presentation Title |
Production and Characterization of (B4C-TiB2)-GNP Composites by Spark Plasma Sintering Method |
| Author(s) |
Berkay Uygun, Leyla Yanmaz, Filiz Cinar Sahin |
| On-Site Speaker (Planned) |
Berkay Uygun |
| Abstract Scope |
Boron carbide (B4C) posesses high hardness, low density, high wear resistance and chemical inertness but is difficult to sinter due to its covalent structure and final sintered B4C products possess low fracture toughness. It is possible to overcome these drawbacks by adding different phases into B4C during its sintering. In this study, titanium diboride (TiB2) and graphene nanoplatelets (GNP) were added into boron carbide to obtain easy-to-sinter (B4C-TiB2)-GNP ceramics with improved fracture toughness by spark plasma sintering. In the experimental stage, B4C and fixed 15 vol% TiB2 powders were mixed directly as matrix and 1-3 vol% GNP powders were then added into the matrix mixtures. The prepared powders were spark plasma sintered at 1600 °C. Some mechanical properties such as fracture toughness and hardess and relative densities of the sintered samples were investigated. Microstructural characterizations were carried out along with modelings of temperature changes and thermal gradient formations during sintering. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Mechanical Properties, Modeling and Simulation |