  Superconducting bulk properties of ternary Nb2 BN are confirmed and are
described by means of magnetization, electronic transport and specific-heat
measurements. BCS conventional super- conductivity is found with Tc = 4.4 K.
Critical fields Hc1 (0)= 93 Oe and Hc2 (0)= 2082 Oe are extrapolated by
magnetic and resistivity measurements. The specific heat data reveals {\gamma}
= 6.3 mJ/mol K2 and {\beta} = 0.293 mJ/mol K4 in good agreement with the BCS
Theory.

Superconductivity