| 主权项 |
1. Electronically conductive enamel composition comprising or consisting of
(i) an enamel matrix melting at a temperature in the range 600° C. to 900° C. and (ii) particles, embedded in the enamel matrix, of one or more electronically conductive materials, which are not noble metals, wherein the particles (ii)
have a particle size of 700 μm or smallerand are selected from the group consisting of(a) particles of carbon-based electronically conductive materials,(b) particles of other electronically conductive materials selected from the group comprising metallic electronically conductive materials, which are not noble metals, and(c) particles made up of a combination of carbon-based electronically conductive materials and other electronically conductive materials selected from the group of metallic electronically conductive materials, which are not noble metals; and the total concentration of the particles (ii) is in the range 0.09 vol % to 67.8 vol %, preferably in the range 0.18 vol % to 67.8 vol %, more preferably in the range 1.9 vol % to 55.2 vol %, particularly preferably in the range 3.0 vol % to 44.2 vol %, with reference to the sum of the volumes of the enamel matrix (i) and the particles (ii), wherein the total concentration of particles (a) of carbon-based electronically conductive materials is 48 vol % or less with reference to the sum of the volumes of the enamel matrix (i) and the particles (a). |
