abstract |
Sintered refractory product comprising, in percentages by weight, based on the oxides. more than 10% of chromium oxide Cr O, more than 2% of hafnium oxide HfO, more than 1% of zirconium oxide ZrO, the total content of oxides of chromium, hafnium and Cr O + HfO + ZrO zirconium being greater than 70%. |