文摘
The formation dynamics of calcium barium sulphoaluminate mineral with the composition of 2.75CaO·1.25BaO·3Al2O3·SO3 (C2.75B1.25A3 $\overline{\text{S}}$ S ˉ ) was studied. The results suggest that, under the preparative conditions, the formation of C2.75B1.25A3 $\overline{\text{S}}$ S ˉ mineral is controlled by a diffusion mechanism from 1,100 to 1,380?°C; and, the formation dynamics fits nicely with D 4?=?1???α/3???1???em class="a-plus-plus">α)2/3?=?Kt. From 1,100 to 1,300?°C, the apparent activation energy is 227.45?kJ?mol?. From 1,300 to 1,380?°C, the apparent activation energy decreases to 175.94?kJ?mol?, making the formation of C2.75B1.25A3 $\overline{\text{S}}$ S ˉ mineral faster and easier.