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Abstract：
CaCu3Ti4O12 (CCTO) ceramics were prepared by solid state reaction. The calcining temperature was in the range from 950 degrees C to 1100 degrees C. The phase analyses were determined by XRD. And dielectric properties and impedance spectroscopes of CCTO ceramics were evaluated in the range of 20 Hz similar to 1 MHz and 25 similar to 150 degrees C. Effects of the calcining temperature on sintering properties, crystal structure and dielectric properties of CCTO ceramics were investigated. These results showed that lower calcining temperature favors the sintering of CCTO ceramics. Then CCTO ceramics with better dielectric properties was obtained easier. The dielectric constant at room temperature and 1 kHz was 12 444 for CCTO ceramic, which were calcined and sintered at 950 degrees C and 1120 degrees C, respectively.
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RARE METAL MATERIALS AND ENGINEERING
ISSN： 1002-185X
CN： 61-1154/TG
Year： 2007
Volume： 36
Page： 505-508
0 . 2 8 6
JCR@2007
0 . 6 0 0
JCR@2023
ESI Discipline： MATERIALS SCIENCE;
JCR Journal Grade：3
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 2
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