A gas sensor including a conductive oxide sintered body, the sintered body including a crystal phase having a perovskite-type oxide crystal structure represented by a compositional formula: REaCubFecNidOx wherein RE represents a rare earth element, wherein the following conditions: a+b+c+d=1 and 1.25≤x≤1.75 are satisfied, and wherein a, b, c, and d satisfy the following conditions: 0.375≤a≤0.524; 0.050b≤0.200; 0.025≤c≤0.250; and 0.150≤d≤0.350. Also disclosed is a conductive oxide sintered body, a wiring board including a conductor layer formed of the conductive oxide sintered body and a gas sensor including an electrode formed of the conductive oxide sintered body.
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机译：一种气体传感器，其包括导电氧化物烧结体，该烧结体包括具有由以下组成式表示的钙钛矿型氧化物晶体结构的晶相：RE a Cu b Fe c Ni d O x 其中RE代表稀土元素，其中以下条件：a + b + c + d = 1和1.25满足≤x≤1.75，并且其中a，b，c和d满足以下条件：0.375≤a≤0.524; 0.050 展开▼
