|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Functional Nanomaterials: Functional Low-Dimensional (0D, 1D, 2D) Materials 2022
||Exploration of Growth Mechanism of Boron Carbide Nanowires using Electron Microscopy Based Techniques
||Manira Akter, Terry Xu
|On-Site Speaker (Planned)
Bulk boron carbide exhibits extraordinary thermoelectric properties such as high temperature stability, Seebeck coefficient and electrical conductivity, and relatively low thermal conductivity at higher temperatures due to its unique rhombohedral crystal structure. However, the figure-of-merit (ZT) value of bulk boron carbide is still low, preventing its wide commercial thermoelectric applications for power generation. Recently, boron carbide nanowires with higher-predicted ZT values were synthesized. Although the synthesized nanowires appear to grow in the conventional vapor-liquid-solid (VLS) mechanism, rational synthesis of specific nanowires has not been fully realized yet. To solve the issue, extensive Transmission Electron Microscopy-based cross-sectional examination of boron carbide nanowires has been performed. In this presentation, obtained experimental results and proposed growth mechanisms will be discussed. The results could help to controlled synthesis of boron carbide nanowires with desired thermoelectric properties.
||Characterization, Other, Other