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1. WO2020203077 - GAS SENSOR ELEMENT AND GAS SENSOR

Publication Number WO/2020/203077
Publication Date 08.10.2020
International Application No. PCT/JP2020/010056
International Filing Date 09.03.2020
IPC
G01N 27/409 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
403Cells and electrode assemblies
406Cells and probes with solid electrolytes
407for investigating or analysing gases
409Oxygen concentration cells
G01N 27/416 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
416Systems
Applicants
  • 日本碍子株式会社 NGK INSULATORS, LTD. [JP]/[JP]
Inventors
  • 大西 諒 ONISHI, Ryo
  • 幸島 康英 KOJIMA, Yasuhide
  • 渡邉 悠介 WATANABE, Yusuke
Agents
  • 特許業務法人アイテック国際特許事務所 ITEC INTERNATIONAL PATENT FIRM
Priority Data
2019-06713729.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) GAS SENSOR ELEMENT AND GAS SENSOR
(FR) ÉLÉMENT DE CAPTEUR DE GAZ ET CAPTEUR DE GAZ
(JA) ガスセンサ素子及びガスセンサ
Abstract
(EN)
A sensor element 101 that comprises: an element body 101a that comprises oxygen-ion-conductive solid electrolyte layers (layers 1–6); and a porous protective layer 91 that coats at least a portion of the element body 101a. The thermal conductivity ratio R (=λs/λt) between the surface-direction thermal conductivity λs [W/mK] and the thickness-direction thermal conductivity λt [W/mK] of the porous protective layer 91 is at least 1.6
(FR)
L'invention concerne un élément de capteur (101) comprenant : un corps d'élément (101a) comprenant des couches d'électrolyte solide conductrices d'ions d'oxygène (couches 1 à 6) ; et une couche de protection poreuse (91) qui recouvre au moins une partie du corps d'élément (101a). Le rapport de conductivité thermique R (=λs/λt) entre la conductivité thermique dans la direction de surface λs [W/mK] et la conductivité thermique dans la direction de l'épaisseur λt [W/mK] de la couche de protection poreuse (91) est supérieur ou égal à 1,6
(JA)
センサ素子101は、酸素イオン伝導性の固体電解質層(各層1~6)を備えた素子本体101aと、素子本体101aの少なくとも一部を被覆する多孔質保護層91と、を備えている。そして、多孔質保護層91は、面方向熱伝導率λs[W/mK]と厚さ方向熱伝導率λt[W/mK]との熱伝導率比R(=λs/λt)が1.6以上である。
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