Abstract: Black glass-ceramics were prepared by reactive crystallization method at 900 ℃ using waste glass powder and self-made black pigment as raw materials, fluoromica, gehlenite and enstatite as reaction crystallization promoters. The crystal structure and morphology of the samples were characterized by X-ray diffraction and scanning electron microscopy, and their physical and mechanical properties were determined. The results show that the phase structure of black glass-ceramics has not changed after adding different crystallization promoters, but the bonding strength between the precipitated crystals and glass is different, resulting in different physical and mechanical properties of the samples. Without adding crystallization promoter and adding gehlenite black glass-ceramics, it can meet the requirements of building materials: the density is more than 2.00 g/cm3, the water absorption is less than 0.5% and the modulus of rupture is more than 35.0 MPa. Among them, the black glass-ceramics with adding gehlenite shows the best properties: the density is 2.46 g/cm3, the water absorption is 0.003%, the modulus of rupture is 49.0 MPa, and it has good acid and alkali resistance.
司伟. 废玻璃反应析晶制备黑色玻璃陶瓷及其性能研究[J]. 材料导报, 2020, 34(16): 16062-16065.
SI Wei. Preparation and Properties of Black Glass-Ceramics by Reaction Crystallization with Waste Glass. Materials Reports, 2020, 34(16): 16062-16065.
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2020, Vol. 34 
