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The 18 O/ 16 O Isotope Exchange Depth Profile technique was applied to BE25 ((Bi 2 O 3 ) 0.75 (Er 2 O 3 ) 0.25 ) and BICAO ((Bi 2 O 3 ) 0.73 –(CaO) 0.27 ) dense ceramics to characterise the oxygen transfer in these materials. Pure ceramics, ceramics coated with silver on the surface and 40% silver cermets...
Oxygen permeation measurements were performed on two layered bismuth based oxide ceramics: a rhombohedral phase belonging to the Bi 2 O 3 –CaO system, (Bi 2 O 3 ) 0.73 –(CaO) 0.27 (BICAO) and a BICOVOX phase. Oxygen permeability for these systems was compared to permeability of the cubic fluorite type structure with composition (Bi 2 O 3...
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