摘要 |
To be provided is a metal paste from which an electrode having high electrode activity as a sensor electrode of various gas sensors can be produced. The present invention is a metal paste for forming a gas sensor electrode obtained by dispersing a conductive particle including Pt or a Pt alloy and a ceramic powder including zirconia or stabilized zirconia, or any of zirconia and stabilized zirconia and one or more oxides of La, Ce, Pr, Nd, Sm, and Hf in a solvent, the metal paste further including an inorganic oxide particle containing alumina and an insoluble particle that is insoluble in the solvent, in which 0.5 or more to 3.0 mass% or less of the inorganic oxide particle and 1.0 to 5.0 mass% of the insoluble particle are dispersed based on the mass of the solid content of the conductive particle, the ceramic powder, the inorganic oxide particle, and the insoluble particle. |
申请人 |
TANAKA KIKINZOKU KOGYO K.K. |
发明人 |
OKAMOTO, NOBUHISA;HOSOI, TAKUYA;AKIYAMA, NOBUYUKI;NAKAI, AKIHIRO;ONOZUMI, SHIGEKAZU |