Crystallization behavior of the eutectic glass in the C12A7–CaYAlO4 system

✍ Scribed by Naonori Sakamoto; Kazunari Suda; Tomoaki Watanabe; Nobuhiro Matsushita; Masahiro Yoshimura

• Book ID: 104022865
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 682 KB
• Volume: 28
• Category: Article
• ISSN: 0955-2219
• DOI: 10.1016/j.jeurceramsoc.2008.01.010

✦ Synopsis

Crystallization behavior during annealing of eutectic glass in the C12A7-CaYAlO 4 system was investigated by SEM, STEM, XRD, and TG-DTA. At 900 • C, phase separation of Y-poor and Y-rich phases appeared without crystallization. The phase separation might lead bulk crystallization of C12A7 by subsequent crystallization. At 950 • C, crystallization of unknown metastable phase was observed together with C12A7 crystallization. Above 1000 • C, crystallization of CaYAlO 4 and C12A7 was observed. Crystallization behavior was schematically explained and bulk crystallization of C12A7 was explained by the phase separation.