LAMINATION TYPE GAS SENSOR ELEMENT, GAS SENSOR, AND METHOD OF MANUFACTURING THE SAME

• Main Authors: OKAZAKI SATOSHI, KOJIMA AKIYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 03.09.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To alleviate stress concentration generated in a solid electrolyte.SOLUTION: In a lamination type gas sensor element, a plurality of plate-like members are laminated including a quadrilateral plate-like insulation member in which a solid electrolyte is embedded. The solid electrolyte forms an arc shape whose contour shape at a position facing at least one side of the four sides of the insulation member protrudes toward the one side when viewed from a surface perpendicular to the thickness direction of the insulation member including the solid electrolyte. 【課題】固体電解質体に生じる応力集中を緩和する。【解決手段】ガスセンサ素子は、固体電解質体が埋め込まれた四辺を有する板状の絶縁部材を含む複数の板状部材が積層された積層型のガスセンサ素子である。固体電解質体は、固体電解質体を含む絶縁部材の厚さ方向に垂直な面でみたときに、固体電解質体のうち、絶縁部材の四辺のうち少なくとも一辺に対向する位置の輪郭形状が、当該一辺に向かって突出する円弧形状をなす。【選択図】図４