What determines the properties of silicate bonded magnesia refractories? What is the reason

Determined by the main crystal. According to the chemical network before diffraction, the main crystalline phase of magnesia refractories is periclase, and the so-called second solid refractory mineral is the main combined phase. If the binder phase is mainly low-melting minerals, the performance is low. The main crystalline phase determines the characteristics of magnesia materials, such as high fire resistance and good resistance to alkaline slag and iron slag.