Fabrication of bulk glass from the eutectic melt in Y2O3-CaO-Al2O3 system

Tokyo Institute of Technology, Edo, Tōkyō, Japan
Journal of Electroceramics (Impact Factor: 1.42). 12/2006; 17(2):1075-1078. DOI: 10.1007/s10832-006-9010-5

ABSTRACT We have studied glass formable region in the Y2O3-CaO-Al2O3 system. An optimal composition for the amorphous phase formation was found in the pseudo-eutectic 12CaO⋅7Al2O3-CaYAlO4 system. An amorphous bulk plate of 10 × 25 × 1.8 mm was successfully fabricated using a simple molding technique. The fabricated
glass plate showed an IR absorption edge at around 5.6 μm. The crystallization of the glass sample was observed above 890∘C by an X-ray diffraction (XRD) and Thermogravimetry and Differential thermal analysis (TG-DTA).