TANAKA KIKINZOKU KOGYO K.K.
|TANAKA KIKINZOKU KOGYO K.K. Patent applications|
|Patent application number||Title||Published|
|20150241384||SENSOR ELECTRODE, MANUFACTURING METHOD THEREOF, AND METAL PASTE FOR ELECTRODE FORMATION - The present invention relates to a gas sensor electrode including a conductive particle phase made of Pt or Pt alloy and a ceramic particle phase being mixed and dispersed, wherein a rate of content of the ceramic particle phase is 6.0 to 22.0 mass %, and a void ratio is 2.5 to 10.0%, and a dispersion degree of the conductive particle phase per length of 25 μm on the electrode surface is 0.60 to 0.85 μm, and a dispersion degree of the conductive particle phase in the electrode cross section per length of 100 μm in a direction parallel to the electrode surface is 2.0 to 4.0 μm. This electrode can be produced by firing a metal paste made by dispersing, in a solvent, a conductive particle having a core/shell structure in which a core particle such as Pt is covered with a ceramic shell and ceramic powder. The gas sensor electrode according to the present invention has a high electrode activity.||08-27-2015|
Patent applications by TANAKA KIKINZOKU KOGYO K.K.