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Effects of SrO-B O -SiO glass additive on the microstructure and dielectric properties of CaCu Ti O

Journal of Materials Science: Materials in Electronics, ISSN: 0957-4522, Vol: 23, Issue: 2, Page: 612-617
2012
  • 23
    Citations
  • 0
    Usage
  • 14
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    23
    • Citation Indexes
      23
  • Captures
    14

Article Description

The effect of SrO-B O -SiO glass additive (SBS) on the microstructure and dielectric properties of CaCu Ti O (CCTO) ceramics was investigated. This SBS-added CCTO ceramics were prepared by the solid state reaction. The undesirable impurity phases Ca SiO started appearing in the XRD patterns, suggesting a possible chemical reaction between CaTiO and SiO (the devitrification production of SBS glass). The SBS glass additive promoted the grain growth and densification of CCTO ceramics. Cole-Cole plots of conductance suggested that the resistivity grain boundary decreased with increasing amount of SBS glass (when x = 0-2 wt%), then increased (when x = 2-3 wt%). The addition of SBS glass was desirable to increase the dielectric constants (up to 10 ) and lowered the dielectric losses of CCTO over the frequency range of 450-40 kHz at the relatively lower sintering temperature for relatively shorter sintering time (1,050 °C, 12 h). © 2011 Springer Science+Business Media, LLC.

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