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X7R type lead complex perovskite ferroelectric ceramics with high dielectric constant

Published online by Cambridge University Press:  31 January 2011

Lijian Ruan ,
Longtu Li  and
Zhilun Gui
Lijian Ruan
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, The People's Republic of China
Longtu Li
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, The People's Republic of China
Zhilun Gui
Affiliation:
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, The People's Republic of China
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Extract

A new X7R type dielectric ceramics for the PMN-BT-PT system with a high dielectric constant (4832) and a low firing temperature (1100–1130 °C) was prepared by the mixed-sintering method. The results of XRD, SEM, EDAX, and dielectric measurements showed that the dielectric ceramics is a two-phase composite with the high dielectric constant originating from the ferroelectric relaxor, and the temperature stability of the dielectric properties from two-phase coexistence.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 2 , February 1998 , pp. 253 - 256
Copyright
Copyright © Materials Research Society 1998

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References

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