A. Stos-Galeet al. NOTES ' Previous data bases were published in Archaeomeny as follows: 1 (western Mediterranean): Archaeometry, 37 (2), 1995,407-15 2 (Britain and Ireland): Archarornetry . 38 (1). 1996. 165-80 3 (Aegean, part 1): Archeomtry, 38 (2). 19%. 381-90 4 (Cyprus): Archaeonretry, 39 (1). 1997,237-46.

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Three zinc electrodes with carbon additive were prepared through ultrasound treatment. Two of them were mixed with conductive ceramic additives from the Bi-Sr-Ca-Cu-O (BSCCO) system with nominal chemical composition Bi1.7Pb0.3Sr2CuOx (B(Pb)SCCO 2201) and Bi1.7Pb0.3Sr2CaCu2Ox (B(Pb)SCCO 2212). The phase composition and morphology of the as-prepared samples were characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The EDX specters suggest that the composition of the active mass does not change during the ultrasound treatment. The micrographs show that the active mass with carbon and 2201 additive has superior particle distribution compared to the other two samples.

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