Synthesis of wollastonite binder in mixtures with variable content of сalcium carbonate and silica raw material
Synthesis wollastonite binder in compositions of reactive and amorphous silica raw material (diatomite, opoka, marshallite, microsilica) with variable contents (10 to 50 %) component of lime (chalk) provides a chemically resistant against molten aluminum wollastonite containing ceramics having a density of 1.1-1.7 g/cm <sup>3</sup> and a mechanical compressive strength of 3 - 3.5 times greater than the requirements for ceramic materials for foundry equipment.