新型大功率氧化物导电陶瓷

A New-Type High-Power Oxide Conductive Ceramics

介绍一种新型大功率氧化物导电陶瓷．该陶瓷是以六角密堆（ＨＣＰ）结构的ＺｎＯ为主要原料，添加少量杂质，采用电子陶瓷工艺研制而成．研究了陶瓷材料的差热分析（ＤＴＡ）及扫描电子显微结构．测量了瓷体的电阻率．

A new-type high-power oxide conductive ceramics is described.The conductive ceramics is produced by electronic ceramic technology with ZnO of a structure of hexagonal-closest-packing(HCP) doped with impurities as the chief raw material.The microstructure of the ceramics is investigated by a differential thermal analysis and the scanning electron microscope.The resistivity of the ceramics has been measured.At ambient temperature,the conductivity is already high and it is capableo f bearing a large power impact.The resistivity of the ceramics measured is 6.8×10-2Ω.cm at ambient temperature.