Title:
OXYGEN SENSOR ELEMENT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/264918
Kind Code:
A1
Abstract:
Provided is an oxygen sensor element that enables conservation of electric power without diminishing sensor properties. In order to achieve this, a structure is obtained by covering, with a heat insulation layer, an outer surface of a ceramic sintered compact serving as a sensing layer comprising the composition LnBa2Cu3O7-δ (wherein Ln is a rare-earth element), a heat insulation material, namely, the composition Ln2BaCuO5, is used as the heat insulation layer, and 20 mol% of LnBa2Cu3O7-δ is added to said composition. As a result, interlayer peeling and cracking can be prevented from occurring due to the sinter behavior of the heat insulation layer approaching the sinter behavior of the sensing layer, and by adopting a sandwiched structure in which the sensing layer is interposed between heat insulation layers, the conservation of electric power is made possible by reducing the amount of heat dissipated from the sensing layer.
Inventors:
OKAMOTO TOMOICHIRO (JP)
IGUCHI KENICHI (JP)
OTA YUKIKO (JP)
KOMATSU RYOSUKE (JP)
TANAKA TETSURO (JP)
NISHIZAWA KATSUHIDE (JP)
IGUCHI KENICHI (JP)
OTA YUKIKO (JP)
KOMATSU RYOSUKE (JP)
TANAKA TETSURO (JP)
NISHIZAWA KATSUHIDE (JP)
Application Number:
PCT/JP2022/023308
Publication Date:
December 22, 2022
Filing Date:
June 09, 2022
Export Citation:
Assignee:
UNIV NAGAOKA TECHNOLOGY (JP)
KOA CORP (JP)
KOA CORP (JP)
International Classes:
G01N27/12
Foreign References:
| JPH1073549A | 1998-03-17 | |||
| JP2019168367A | 2019-10-03 | |||
| JP2019168366A | 2019-10-03 | |||
| JP2007085816A | 2007-04-05 |
Attorney, Agent or Firm:
OKAZAKI Hiroshi et al. (JP)
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