摘要
采用在BaTiO3陶瓷中加入Ni粉和石墨粉,将金属Ni和石墨的良好导电性能与BaTiO3基材料优良的PTC效应相结合,旨在研究降低BaTiO3基陶瓷室温电阻率的有效途径。通过大量反复的比对实验和测试分析,制备出了具有较低室温电阻率和一定升阻比性能的正温度系数(PTC)复合材料。
This paper presents a method of combining the good conductive function of Ni and graphite with BaTiO3-hased composites＇ high PTC effect, that is adding Ni and high-purity graphite powders to BaTiO2-hased PTC composites, in order to find out an effective method which can decrease room-temperature resistivity. Through analyzing data and results of the compared experiments, the composites with good functions were prepared.
出处
《压电与声光》
CSCD
北大核心
2007年第4期461-463,共3页
Piezoelectrics & Acoustooptics
基金
博士点基金资助项目(20040056055)
关键词
复合材料
室温电阻率
NI
石墨
composites
room-temperature resistivity
Ni
graphite
