期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 228, 期 -, 页码 160-166出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2017.11.026
关键词
Flash sintering; MnCo2O4 and CeO2; Microstructure; Electrical conductivity; I-V curve
The effect of MnCo2O4 on the electric field assisted flash sintering of CeO2 is demonstrated. CeO2 being a refractory material sinters, conventionally, at very high temperature (similar to 1500 degrees C) and with the assistance of 120-150 V/cm at 890-962 degrees C. A conducting MnCo2O4 which is flash sintered at lower temperatures (200-230 degrees C), by utilizing fields in the range of 12.5-15.0 V/cm is added to ceria to reduce its sintering processing parameters. MnCo2O4 percentage in the composite is varied to understand the significance of the constituent phases during the flash sintering. The extent of sintering along with the phase distribution in the composites is evaluated on the basis of scanning electron microscopy study in backscattered electron mode. Role of the two phases in the flash-effect is emphasized by the measurement of flash threshold parameters, I-V characteristics and specimen temperature during flash sintering.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据