摘要
汽车尾气净化用ZrO2氧传感器的电极表面通常要有陶瓷多孔层,“过滤”废气中的杂质,这对于延长氧传感器的寿命有很重要的作用。本文以镁铝尖晶石为主要原料在1500—1550℃下烧结成多孔保护层,通过研究造孔剂、粘结剂含量以及烧结过程的工艺参数对保护层性能的影响,制备出性能良好的复合氧传感器保护层。
A porous ceramic coating on electrode of zirconia oxygen sensor is commonly used to clean exhaust gas from cars. It plays an important role in extending the sensor' s life. Aiming at the protecting coating we use MgAl2O4 as major raw material to produce porous ceramic coating by means of sintering at 1500 - 1550℃. Through series of measurements and tests on modifying factors such as pore - forming material, binding agent and some parameters of sintering, we have prepared the desired protecting coating that can work well under high temperature.
出处
《玻璃与搪瓷》
CAS
2006年第5期7-10,41,共5页
Glass & Enamel
关键词
氧传感器
保护层
氧化锆
oxygen sensor
protecting coating
zirconia