Erbia-stabilized bismuth oxide

Fig. 10.6. Data for the surface oxygen exchange rate, normalized to air, of 25 mol% erbia-stabilized bismuth oxide (BE25) from (a) isotopic exchange and (b) oxygen permeation measurements. Reprinted...

As seen from Table 10.1 impressive oxygen fluxes have been reported through 25 mol% yttria-stabilized bismuth oxide (BY25) [110] and 25 mol% erbia-stabilized bismuth oxide (BE25) [111,112], which oxide electrolytes were rendered electronically conductive by dispersion with silver metal. A prerequisite is that both constituent phases in the composite membranes do form a continuous path for both ionic and electronic conduction, having their concentrations above the critical (percolation threshold) volume fraction <])(,. The latter quantity determines the minimum volume fraction in which conduction is possible and is a function of, for example, the relative dimensions and shape of the particles of both constituent phases [113]. In actual composite materials,... 

BE25 25 mole% erbia-stabilized bismuth oxide... 

H.J.M. Bouwmeester, H. Kruidhof, A.J. Burggraaf and P.J. Ceilings, Oxygen semipermeability of erbia-stabilized bismuth oxide. Solid State Ionics, 53-56 (1992) 460-468. 

As seen from Table 14.1 impressive oxygen fluxes have been reported through 25 mol% yttria-stabilized bismuth oxide (BY25) and 25 mol% erbia-stabihzed bismuth oxide (BE25), 2 3° which oxide electrolytes were rendered electronically conductive by dispersion... 

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