| 摘要 |
The invention relates to a novel molten and cast refractory product having a high zirconia content and an improved electric resistivity. The refractory product includes, in mass % based on oxides and for a total of more than 98.5%: ZrO+HfO: >85%; SiO: >10% and ≤12%; AlO: 0.1-2.4%; BO: <1.5%; and a doping agent selected from the group comprising VO, CrO, NbO, MoO, TaO, WOand mixtures thereof, in a weighed amount such that 2.43VO+4.42CrO+1.66NbO+3.07MoO+TaO+1.91WOis ≥0.2%. |
