Characterisation of some Clays Used for Whiteware Ceramics, II. Technological Characterization

The paper investigates the mineral composition of four diferent clay types used for whiteware ceramics, correlated to the measured mineralogical and chemical composition, particle size distribution and technological characteristics (plasticity, drying, and firing shrinkage, dry resistance). According to their particle size distribution, the U-II, U-III and ESV3 clay types are almost identically, but the mineralogical composition is different. On the other hand, the CARO clay type has a very similar kaolinite and quartz content with U-II clay, but shows a completely different particle size distribution. Based on the mineralogical and particle size distribution, CARO clay type shows the most suitable technological properties