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CaCu3Ti4O12 were prepared using conventional solid state reaction processing techniques. The structure of CaCu3Ti4O12 was confirmed by X-ray diffraction. The microstructure with various grain sizes was characterized by scanning electron microscopy. Different element distributing between grain and grain boundary was detected by energy dispersive X-ray spectrometer. The dielectric spectrum was measured...
The I-V characteristics of ZnO-based varistor ceramics were investigated in a wide temperature range of 93 K-373 K. From the relationship between overall conductance and temperature, individual conductance component having different temperature dependence can be separated and analyzed. In addition, the equivalent circuits can be developed as well. As to ZnO-Bi2O3 system, the overall conductance is...
Microstructural control in thin-layer multilayer ceramic capacitors (MLCC) is one of the present day challenges for maintaining an increase in capacitive volumetric efficiency. It is observed that the continuity of the Ni electrodes increases with increasing heating rate but behaves non-linearly on sintering temperature. It is proposed that an interfacial liquid alloy layer initiates when the Ni electrodes...
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