Effect of Different Sintering Condition on Bi2Sr2Ca2Cu3Ox (Bi-2223) Superconductors Prepared via Co-Precipitation Method

Abstract

This paper investigates the ability of high temperature superconductor of bismuth- strontium-calcium-copper-oxide Bi2Sr2Ca2Cu3Ox (Bi-2223) bulks with effect of the oxygen content. The Bi-2223 powders were prepared by using co-precipitation method in order to get a good homogeneity and ultrafine BSCCO powder. The good precursor powder was produced in different sintering times which are 24 and 48 hours at sintering temperature of 850 °C. The samples were divided into two different sintering condition which is sintering; flowing the oxygen through the furnace and without flow of oxygen. The phase, structure andsuperconducting properties of the samples were analysed by X-ray diffraction (XRD) and AC Susceptometer. The result showed that the samples with sintered by flowing of oxygen was increased the critical temperature (Tc) with the better grain alignment. XRD analysis also showed a good percentage of the Bi-2223 as a major phase and Bi-2212 as a secondary phase for all samples.