摘要
研究了Co -Mg -NiO系氧敏材料在氧分压为 1～ 10 -2 3 atm(1atm =10 1.32 5kPa) ,温度为 70 0～10 0 0℃范围内的电导率与氧分压及温度的关系 ,讨论了材料的氧敏特性、导电机理 ,得出高温下材料中的缺陷类型随氧分压的降低主要是单电离和双电离的金属缺位 ,并得到了材料的某些参数。
Dependence of the electrical conductivity of Co-Mg-NiO materials on the oxygen partial pressure and the temperature were investigated at the 700～1?000?℃ temperature range at oxygen partial pressures between 1～ 10 -23 ?atm(1?atm=101.325?kPa). Oxygen sensing machanism and electrical c onductivity were studied. The results show that the defects of the matierals app ear to be singly ionized and doubly ionized, and some parameters are presented.
出处
《传感器技术》
CSCD
2000年第4期17-19,共3页
Journal of Transducer Technology
关键词
氧敏材料
电导率
分压
温度
oxygen sensitive materials
electrica l conductivity
defect
