Obtaining high-purity fused refractory oxides

Conclusions Using yttrium oxide and aluminum oxide as examples we demonstrated the possibility of successfully using the induction heating method in a cold crucible for obtaining fused refractory materials possessing a high purity. The contamination of the charge by the crucible material during melting does not exceed 10^–3%.Translated from Ogneupory, No. 7, pp. 26–29, July, 1973.