| 摘要 |
The invention concerns a ceramic, a method for preparing same, and a reference electrode containing same. The ceramic has a perovskite structure and the following properties: its composition is of formula L(2/3) -xA3x (1/3)-2xEO3, wherein L is Bi, Sb, a lanthanide or an alkaline-earth metal; A is Ag or an alkali metal; E is a transition metal oxidizable up to +5 oxidation level, alone or combined with Al or a transition metal oxidizable up to +5 or +6 level; is a vacancy and 0.03</=x</=0.16; it consists of grains having a dimension of the order of 3 to 5 mu m, having an irregular parallelepiped structure or an irregular octahedral structure; it has a specific surface area of the order or 2000 to 4000 cm<2>/g. |
