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

Claim 2:
3. The solid electrolyte for a gas sensor according to claim 1, wherein
the crystal particles further include stabilizer high-concentration crystalline phase particles each being defined such that the concentration of the stabilizer of each of the stabilizer high-concentration crystalline phase particles is 4.7 mol % or more,
the stabilizer high-concentration crystalline phase particles include:
small-particle size particles that correspond to the smallest 10% of particle sizes in a number particle size distribution of the stabilizer high-concentration crystalline phase particles; and
large-particle size particles that correspond to the largest 10% of particle sizes in the number particle size distribution of the stabilizer high-concentration crystalline phase particles,

an average particle size of the stabilizer high-concentration crystalline phase particles, exclusive of the small-particle size particles and large-diameter size particles, is set to be from 1 to 5 μm,
an average value of distances between the voids is 5 μm or less,
a standard deviation of the average value of the distances between the voids is 3 μm or less, and
a degree of dispersion calculated from the average value of the distances between the voids and the standard deviation using the following formula (1) is 5.0 or less:

A=S/D2ave×R  (1)

where:
A represents the degree of dispersion,
S represents the standard deviation,
D2ave represents the average value of the distances between the voids, and
R represents the average particle size of the stabilizer high-concentration crystalline phase particles.