| abstract |
The invention relates to a sintered material which is based on transition metal diborides and comprisesn a) as main phase, 90-99% by weight of a fine-grained transition metal diboride or transition metal diboride mixed crystal comprising at least two transition metal diborides or mixtures of such diboride mixed crystals or mixtures of such diboride mixed crystals with one or more transition metal diborides, where the transition metals are selected from sub-groups IV to VI of the Periodic Table, b) as second phase, 1-5% by weight of particulate boron carbide and/or silicon carbide and c) optionally as third phase, up to 5% by weight of a non-continuous, oxygen-containing grain boundary phase.n nThe invention further relates to a pulverulent sinterable mixture for producing such a sintered material, processes for producing the sintered material, preferably by pressureless sintering, and also to the use of the sintered material as corrosion protection material for salt and metal melts, in particular cryolite-containing melts. |