title: Resistive oxygen sensor using ceria-zirconia sensor material and ceria-yttria temperature compensating material for lean-burn engine.
abstract: Temperature compensating materials were investigated for a resistive oxygen sensor using Ce(0.9)Zr(0.1)O(2) as a sensor material for lean-burn engines. The temperature dependence of a temperature compensating material should be the same as the sensor material; therefore, the Y concentration in CeO(2)-Y(2)O(3) was optimized. The resistance of Ce(0.5)Y(0.5)O(2-δ) was independent of the air-to-fuel ratio (oxygen partial pressure), so that it was confirmed to function as a temperature compensating material. Sensor elements comprised of Ce(0.9)Zr(0.1)O(2) and Ce(0.5)Y(0.5)O(2-δ) were fabricated and the output was determined to be approximately independent of the temperature in the wide range from 773 to 1,073 K.
authors.affiliation: National Institute of Advanced Industrial Science and Technology (AIST), Advanced Manufacturing Research Institute, 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, Japan; E-Mails:  s-nishizaki@aist.go.jp  (S.N.);  w.shin@aist.go.jp  (W.S.);  itoh-toshio@aist.go.jp  (T.I);  m-nishibori@aist.go.jp  (M.N.);  matsubara-i@aist.go.jp  (I.M.).
authors.forename: Noriya
authors.initials: N
authors.lastname: Izu
authors.forename: Sayaka
authors.initials: S
authors.lastname: Nishizaki
authors.forename: Woosuck
authors.initials: W
authors.lastname: Shin
authors.forename: Toshio
authors.initials: T
authors.lastname: Itoh
authors.forename: Maiko
authors.initials: M
authors.lastname: Nishibori
authors.forename: Ichiro
authors.initials: I
authors.lastname: Matsubara