功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2012年
6期
788-790
,共3页
铈锆固溶体%固体参比层%泵氧%氧传感器
鈰鋯固溶體%固體參比層%泵氧%氧傳感器
시고고용체%고체삼비층%빙양%양전감기
ceria-zirconia solid solution%solid reference layer%pump oxygen%oxygen sensor
传统片式浓差型氧传感器存在陶瓷成型工艺复杂、成本高等问题。为解决此类问题,利用铈锆固溶体储氧材料的储氧特性,将其作为固体氧参比材料代替空气参比,研制铈锆固溶体参比氧传感器,探讨不同化学组成和厚度的CeO2-ZrO2固溶体对传感器氧敏信号的影响。并通过增加泵氧单元以抑制氧敏信号衰减,解决了实际使用中因铈锆固溶体中氧消耗而导致的氧传感器输出信号衰减问题,可满足车用氧传感器的正常工作需要。
傳統片式濃差型氧傳感器存在陶瓷成型工藝複雜、成本高等問題。為解決此類問題,利用鈰鋯固溶體儲氧材料的儲氧特性,將其作為固體氧參比材料代替空氣參比,研製鈰鋯固溶體參比氧傳感器,探討不同化學組成和厚度的CeO2-ZrO2固溶體對傳感器氧敏信號的影響。併通過增加泵氧單元以抑製氧敏信號衰減,解決瞭實際使用中因鈰鋯固溶體中氧消耗而導緻的氧傳感器輸齣信號衰減問題,可滿足車用氧傳感器的正常工作需要。
전통편식농차형양전감기존재도자성형공예복잡、성본고등문제。위해결차류문제,이용시고고용체저양재료적저양특성,장기작위고체양삼비재료대체공기삼비,연제시고고용체삼비양전감기,탐토불동화학조성화후도적CeO2-ZrO2고용체대전감기양민신호적영향。병통과증가빙양단원이억제양민신호쇠감,해결료실제사용중인시고고용체중양소모이도치적양전감기수출신호쇠감문제,가만족차용양전감기적정상공작수요。
Traditional planar Zr02 nernst-type oxygen sensors still use air as the reference, so they have many shortages such as complex ceramic molding process and high cost. In order to solve such problems, we used ce- ria-zirconia solid solution as solid reference layer to replace the air reference, as cerium ions has a valance change between four and three. In this way, we discussed how different chemical composition and thickness of ceria-zir- conia solid reference layer can make a difference to gen unit to inhibit the signal attenuation, the solid oxygen sensor. the output signal attenuation. Through adding a pump oxy- referenced oxygen sensor can fully meet the needs of vehicle