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The influence of Ti-nonstoichiometry in BNT was investigated using XRD, SEM/EDX and electrical measurements. It is shown that nonstoichiometric compositions of BNT derived materials tend to maintain stoichiometry by forming a secondary phase like TiO 2 or by the evaporation of volatile compounds like Bi 2 O 3 and Na 2 O. Due to this ability, variations of the Ti-content...
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