On electrical conductivity of melts of boron and its compounds under   pressure
  The electrical conductivity of melts of boron and its carbide (B4C), nitride (BN), and phosphide (BP) has been studied at pressures to 7.7 GPa and temperatures to 3500 K. It has been shown that these melts are good conductors with specific electrical conductivity values comparable with that of iron melt at ambient pressure. 
Vladimir A. Mukhanov, Vladimir L. Solozhenko
cond-mat.mtrl-sci