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Fabrication, characterization and sintering of glass-ceramics for low-temperature co-fired ceramic substrates

  • Guohua Chen
  • Xinyu Liu
Article

Abstract

Cordierite-based glass-ceramics with non-stoichiometric composition doped with rare earth oxide (CeO2) and heavy metal oxide (Bi2O3) respectively were fabricated from glass powders. After sintering and crystallization heat treatment, various physical properties, including compact density and apparent porosity, were examined to evaluate the sintering behavior of cordierite-based glass-ceramics. Results showed both that the additives heavy metal oxide and rare earth oxide promoted the sintering and lowered the phase temperature from μ- to α-cordierite as well as affecting the dielectric properties of sintered glass-ceramics. The complete-densification temperature for samples was as low as 900 °C. This material has a low dielectric constant (≈5.3), a low dielectric loss (≤0.2%) and a low thermal expansion coefficient (2.8–3.52×10−6 K−1), and can be co-fired with high conductivity metals such as Au, Ag, Cu, Ag/Pd paste at low temperature (below 950 °C), which makes it a promising material for low-temperature co-fired ceramic substrates.

Keywords

CeO2 Bi2O3 Glass Powder Rare Earth Oxide Apparent Porosity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Guohua Chen
    • 1
    • 2
  • Xinyu Liu
    • 1
    • 2
  1. 1.Research Center for Materials Science and EngineeringGui Lin University of Electronic TechnologyGuilinPeople’s Republic of China
  2. 2.College of Materials Science and EngineeringCentral South UniversityChangshaPeople’s Republic of China

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