期刊
FERROELECTRICS
卷 451, 期 1, 页码 54-61出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00150193.2013.838927
关键词
Microwave dielectric properties; composite ceramics; ZnTa2O6; NiNb2O6
资金
- National Natural Science Foundation of China [51172019, 10979013, 50972008]
The composite ceramics of (1-x)ZnTa2O6-xNiNb(2)O(6) (x = 0-1.0) were prepared by solid-state route, and the effects of x values on the microwave dielectric properties and microstructures of the ceramics were investigated in this work. The results show that two structure regions were observed in XRD patterns as x ranged from 0 to 1.0 and the sintering temperature is 1275 degrees C. SEM results indicate that uniform and densified surfaces can be observed for all samples. Both of the dielectric constants and Q x f values of the composite ceramics decreased with increasing x values. However, The (f) values of the composite ceramics present a non-linear phenomenon, and can be tailored by controlling the x values, and a zero temperature coefficient of resonant frequency can be expected at x = 0.4-0.5.
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