Ngk Insulators, Inc.

Shinsaku Maeda

Takahiro Tomita

Hiroharu Kobayashi

Shuichi Ozawa

Hiroki Fujita

Akinobu Oribe

Hironori Sakakibara

Yasutaka Awakura

The porous plate-shaped filler aggregate includes a plurality of the porous plate-shaped fillers. The porous plate-shaped fillers have a uniform plate shape with an aspect ratio of 3 or more, a minimum length of 0.1 to 50 &#x3bc;m, a porosity of 20 to 99%, and the deviation of the maximum length among a plurality of the porous plate-shaped fillers, which is obtained by the following formula, is 10% or less.Deviation of the maximum length (%)=standard deviation of the maximum length/average value of the maximum length&#xd7;100 (Here, 'maximum length' is the longest length when the porous plate-shaped fillers are held between a pair of parallel planes.)

Porous plate-shaped filler aggregate, producing method therefor, and heat-insulation film containing porous plate-shaped filler aggregate

A sensor element includes a sensor element main body a including an oxygen ion-conductive solid electrolyte layer and a porous protective layer covering at least part of the sensor element main body. Then, the porous protective layer has the value of the number of interfaces in a unit thickness direction, which is the number of particle interfaces of constituent particles every 100 &#x3bc;m in the thickness direction, of 15 or more and 250 or less.

Gas sensor element and gas sensor

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Nagoya, Japan

Shinsaku Maeda