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The effects of sulfate content on structure and chemical durability of barium borosilicate glass-ceramics were studied. The results show that the glass-ceramics with 0–1.10 mol% SO3 possess mainly CaZrTi2O7-2M phase along with a small amount of CaZrTi2O7-3T and ZrO2 phases. The hexagonal CaZrTi2O7-3T crystals crystallize on the surface of glass-ceramics. For the samples with 1.24–1.55 mol% SO3, the...
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