Synthesis of magnesia - calcium zirconate - dicalcium silicate materials by reaction sintering of dolomite - zircon mixtures. Processing study

摘要

The interdependence of green density and particle size and their influence on the reaction sintering behaviour of zircondolomite powder mixtures were investigated. Powder size was controlled by attrition-milling for different times and was defined as the average size distribution for identical consolidation conditions. Both the green density and the degree of powder agglomeration affect the sinter behaviour over the entire process. The experimental results showed that compacts with similar green density and which contained fewer coarse particles had a better sintering behaviour. The most important controlling parameters are characteristics of the raw materials as particle or agglomerate particle size and particle size distribution, homogeneity and compaction of the raw materials and sintering temperature.