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

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• 作者：Naonori Sakamoto ; Tomoaki Watanabe and Masahiro Yoshimura
• 关键词：C12A7 ; Eutectic melt ; Glass formation ; Phase diagram ; Calcium aluminate
• 刊名：Journal of Electroceramics
• 出版年：2006
• 出版时间：December, 2006
• 年：2006
• 卷：17
• 期：2-4
• 页码：1075-1078
• 全文大小：281 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Ceramics,Glass,Composites,Natural Materials
  Characterization and Evaluation Materials
  Electrochemistry
  Crystallography
  
• 出版者：Springer Netherlands
• ISSN：1573-8663

文摘

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).