Patent ID: 11927561
Assignee: DENSO CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H  C | IPC C  G

Claim 0:
1. A solid electrolyte for a gas sensor, the solid electrolyte comprising a partially stabilized zirconia that is comprised of zirconia and a stabilizer being in a solid solution in the zirconia;
wherein:
the partially stabilized zirconia comprises crystal particles,
the crystal particles include stabilizer low-concentration crystalline phase particles each being defined such that the concentration of the stabilizer of each of the stabilizer low-concentration crystalline phase particles is less than 4.7 mol %,

the partially stabilized zirconia comprises voids between the crystal particles, and
the stabilizer low-concentration crystalline phase particles in the partially stabilized zirconia include specific stabilizer low-concentration crystalline phase particles each having a distance of 5 μm or less from at least one adjacent void adjacent to the specific stabilizer low-concentration crystalline phase particle in the voids, a presence ratio of the specific stabilizer low-concentration crystalline phase particles being 65 volume percent or more, the distance being a distance between a center of the specific stabilizer low-concentration crystalline phase particle and a center of the at least one adjacent void.