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Abstract:
New high-ε and high-Q microwave dielectric ceramics (1 - x)Ca0.61Nd0.26TiO3 - xNd(Zn0.5Ti0.5)O3 (x = 0.00-0.40, referred to as (1 - x)CNT - xNZT) were prepared by conventional solid-state preparation route. Single orthorhombic perovskite phase was formed when x was not beyond 0.15. And a secondary phase Zn2TiO4 appeared for x = 0.20, while ZnO was the secondary phase for the ceramics with x above 0.20. The dielectric constant and temperature coefficient of resonant frequency decreased steadily with increasing x-value. High Qf-value of above 10,000 GHz was achieved as x varied from 0.00 to 0.20. However, Qf-value decreased rapidly when x was beyond 0.20. Some (1 - x)CNT - xNZT ceramics with high ε and high Qf value were obtained: ε = 78.8, Qf = 19,200 GHz, τf = + 135 ppm/°C for x = 0.15; ε = 71.8, Qf = 17,300 GHz, τf = + 94 ppm/°C for x = 0.20. © 2009 Elsevier B.V. All rights reserved.
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Journal of Alloys and Compounds
ISSN: 0925-8388
Year: 2009
Issue: 1
Volume: 488
Page: 409-413
2 . 1 3 5
JCR@2009
5 . 8 0 0
JCR@2023
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
SCOPUS Cited Count: 21
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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