โ Scribed by R. Cioffi; P. Pernice; A. Aronne; M. Catauro; G. Quattroni
No coin nor oath required. For personal study only.
The effects of the addition of MgO and 770 2 to fly ash on the nucleation and crystal growth mechanisms of the derived glass are investigated with the aid of differential thermal analysis, dilatometry, X-ray diffraction and scanning electron microscopy (SEM). Phase separation occurs on heating the investigated glass. The glass-ceramic materials obtained contain anorthite (CaOA~032Si02) and cordierite (2MgO2AL035Si02) as the main crystalline phases. The morphology of the glass~ceramic material was investigated by SEM and it was consistent with the double-framework structure of the phase-separated glass and it was constituted by a low viscosity phase almost completely crystalhsed and high viscosity phase scarcely or not crystallised, depending on the heat-treatment.
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