Affiliation:
1. Jingdezhen Ceramic Institute
Abstract
The properties of anorthite-based glass/ceramic with different amounts of CeO2 addition had been investigated in this paper. The glass/ceramics with small amounts of CeO2 addition could be well sintered at 850~900°C. The water absorption was examined to evaluate the sintering behavior of the samples. The crystalline phase,microstructure, dielectric properties, thermal expansion and bending strength were characterized by X-Ray diffraction (XRD), scanning transmission electron microscope (SEM), impedance materials analyzer, thermal expansion analyzer and flexural strength analyzer. The results showed the 1wt % CeO2-doped glass/ceramics sintered at 900 °C have optimum properties of ε = 6.282, tanθ = 2.18×10-3 at 1 MHz and a thermal expansion coefficient of 3.32×10-6 °C-1 (25~500 oC) matched with silicon chip (3.4×10-6 °C -1). Obviously, CeO2 could be used as a suitable sintering aid that improves densification of the glass/ceramic composites.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference7 articles.
1. M. Sen, Y. Juan, M. F. Ferreira Jose, The fabrication and characterization of low-k cordierite-based glass-ceramics by aqueous tape casting, J. Eur. Ceram. Soc. 24, 295-300 (2004).
2. X. Gu, W. Dong, Y. Chen and Y. Li, study of the glass-anorthite insulating composites with low dielectric constant and low sintering temperature, Rare Metal Materials and Engineering, 8, 464-467 (2007).
3. M.T. Sebastian, dielectric materials for wireless communication, Elsevier Publications, UK, (2008).
4. D. M. MILLER, sintered cordierite glass-ceramic bodies, US Patent 3926648 (1975).
5. J. Kim, S. Hwang, W. Sung and H. Kim, Thermal and dielectric properties of glass-ceramics sintered based on diopside and anorthite composition, Journal of Electroceramics, 23, 209-213 (2009).
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