汽车氧传感器ZrO_2基电解质材料的研究进展  

Development of ZrO_2-based Electrolyte Materials for Oxygen Sensors in Automobile

作　　者：江涛[1] 魏群 杨金平[1] 江丽君[1] 李艳 

机构地区：[1]华南理工大学特种功能材料与其制备新技术教育部重点实验室,广东广州510641 [2]广州市杰赛科技集团股份有限公司,广东广州510310

出　　处：《电子元件与材料》2006年第9期1-4,共4页Electronic Components And Materials

基　　金：广州市科技攻关计划资助项目

摘　　要：介绍了汽车发动机电子控制燃油喷射系统(EFI)的氧传感器(EGO)ZrO2基电解质材料,用氧化物MOn(n<2)对ZrO2进行掺杂改性;Al2O3、SiO2、MgO等烧结助剂可降低其烧成温度。研究了掺杂物对电解质的电导率、灵敏度、机械强度等参数的影响,探讨了掺杂物改性的机理,展望氧传感器电解质材料的研究方向。Summarized were the solid state electrolyte materials used for oxygen sensor in the electronic fuel insufflation （EFI） system of the engine. The binary, ternary or multi-component zirconia based solid solution electrolytes were modified by doping with oxide （MOn, n〈2）. The sintering temperature was decreased with the doping of sintering agents （Al2O3, SiO2, MgO, etc）. The effects of doping agents on the electrical conductivity, sensitivity and strength of the electrolyte materials were studied. And the mechanism of doping modification was also discussed. Finally, the new research directions of electrolyte materials used for oxygen sensor are pointed out.

关 键 词：电子技术 氧传感器 综述 掺杂改性 氧化锆电解质 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]