TOPIC 6. CERAMIC MATERIALS
2012-12-12 · Topic 6. Ceramic materials (I) 17 STRUCTURE OF SILICATES Composition (wt%) Ceramic SiO 2 Al 2O 3 K 2O Mg O CaO Othe r Silica refractory 96 4 Fireclay refractory 50-70 45-25 5 Mullite refractory 28 72 - Electrical porcelain 61 32 6 1 Steatite porcelain 64 5 30 1 Portland cement 25 9 64 2 Composition of some silicate ceramics
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