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Effect of cooling regimes on the phase transformation of the mixtures with an acidity of 0.92 smelted at different temperatures for 60 min in pure N2 (99.99%) atmosphere. (a) Air cooling; (b) Water quenching; (c) Phase comparison of the mixture smelted at 1450 °C for 60 min under different cooling regimes; (d) Glass structure of YPS after water quenching.
