Nanosheet-structured B<sub>4</sub>C with high hardness up to 42 GPa

Nanosheet-structured B₄C with high hardness up to 42 GPa

Wang Chang-Chun^{1, †}, Song Le-Le^{1, 2}

Variation of hardness with temperature for B₄C synthesized at 5.2 GPa and temperatures 1800 °C, 2000 °C, and 2200 °C for 15 min. Inset shows measured Vickers hardness of B₄C synthesized at 5.2 GPa and temperatures of 2200 °C for 15 min at different applied loads.