Alkali and Alkaline Earth Aluminates

There are two important systems discussed in this section: CaO-Al2O3 and MgO-Al2O3. In addition, there are sometimes other binary systems and mixtures or small amounts of additional elements added to the binary systems such as SrO, added to improve glass forming ability [20, 21]. For convenience, these latter more complex systems will be discussed with the strict binary CaO-Al2O3 phases.