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Journal of Materials Science

, Volume 42, Issue 3, pp 979–982 | Cite as

Cadmium substituted (Bi1.5ZnNb1.5)O7 dielectric ceramics

  • Huiling DuEmail author
  • Xi Yao
Review Paper

Abstract

The effects of small amounts of Cd substitution for Zn in the low loss dielectric material Bi1.5ZnNb1.5O7 are reported. Solid solution of (Bi1.5Zn0.5-xCdx)(Zn0.5Nb1.5)O7 was formed in the present ceramics for x < 0.1, and β-Bi2O3 secondary phase appeared at x = 0.3. For x = 0.5, another phase Bi1.6Cd0.4O2.8 appeared gradually with increasing x. With increasing x, the dielectric constant increased firstly and reached their maximums 168 at 1 MHz, then decreased after x > 0.2. High-ɛ dielectric ceramics with low dielectric loss were created at the composition x = 0.2: ɛ = 168, \(\tan\delta=0.0001\) and αɛ =  − 554 ppm/° at 1 MHz.

Keywords

Dielectric Constant Dielectric Property Bi2O3 Temperature Coefficient Pyrochlore Structure 
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.

Notes

Acknowledgements

This work was supported by the Ministry of Science and Technology of China through 973-project (2002CB613302), China Postdoctoral Science Foundation (2005037018) and the Nature Science Project of education department of Shaanxi Province (04JK226).

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.Electronic Materials Research LaboratoryXi’an Jiaotong UniversityXi’anChina
  2. 2.Department of Materials Science & EngineeringXi’an University of Science & TechnologyXi’anChina

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