Schmelzgegossenes feuerfestes Material mit hohem Zirkoniumoxid-Gehalt.
摘要
<p>A high zirconia fused cast refractory having excellent thermal cycle resistance which comprises, as chemical components of the refractory, from 90 to 95% by weight of ZrO2, from 3.5 to 7% by weight of SiO2 and from l to 3% by weight of A l 2O3 and which does not substantially contain any one of P2O5, B2O3 and CuO.</p>
