CRYSTALLIZED GLASS WITH VERY LOW THERMAL EXPANSION COEFFICIENT BY USING COAL BOTTOM ASH AND Li2O AND METHOD OF MANUFACTURING THE SAME

摘要

The present invention relates to a Li ₂ O-Al ₂ O ₃ -SiO ₂ -based crystallized glass and a method for producing the same, which provides a crystallized glass and a method for producing the same in the LAS-based crystallized glass. . According to the present invention, it is possible to recycle the coal flooring material, which is a waste, to crystallized glass, and crystallized glass which can be applied to various fields where heat resistance is required by producing crystallized glass having a very low thermal expansion coefficient by adding Li ₂ O and appropriately heat-treating. The manufacturing method can be provided.