Reactive Phase Calsintering of Dolomite

The densification by the reactive phase calsintering of a compact formed from an oxide precursor is presented. The essential features of the process are the development of a reactive, high surface area matrix upon calcination of the precursor and the presence of a reactive liquid phase during sintering. The densification process is described for Fe₂O₃ doped dolomite in terms of the elimination of intra-aggregate ana interaggregate porosities via liquid phase sintering. It is demonstrated that high densities (≥95%) and rapid sintering kinetics can be obtained with coarse (>10μm) precursor powders.