Phase Evolutionary Process of CaO-Al₂O₃-SiO₂ System Glass and Glass-Ceramic

Abstract:

Sintering glass-ceramics, a new type material for architectural decoration, belong to CaO-Al₂O₃-SiO₂ system (CAS) without nucleation agent. Combined by Differential thermal analysis (DTA), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Transmission electron microscope (TEM), phase evolutionary process of CaO-Al₂O₃-SiO₂ system glass and glass-ceramic was investigated. According the relation between heat treatment schedule and microstructure, the glass system has a very wide temperature range of crystallization. The crystalline phase is β-CaSiO₃ (β-wollastonite) and there is no other crystalline phases precipitated in these glass-ceramics. The influences of various heat treatment systems on the structure and properties of the glass-ceramics were investigated simultaneously. The optimal heat treatment schedule, microstructure and bending strength of the CAS glass ceramic were gained.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 1947-1952
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.1947
• Online since: December 2010
• Authors: Feng He, Cai Ming Ping, Jin Shu Cheng
• Keywords: CaO-Al2O3-SiO2 System Glass-Ceramics, Decoration Material, Heat Treatment, Phase Evolutionary Process

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