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Ali Razzaq ABDULRIDHA, Muna Musa ABBAS; Effect of nano-TiO2 addition on superconducting properties of (Bi, Pb)-2223 thin films; Advanced Materials and Technologies Environmental Sciences; 2017:1(2):86-92
Nd:YAG pulse laser system was used to fabricated TixBi1.7Pb0.3Sr2Ca2Cu3Oy superconductor thin films, were x=0.1, 0.3 and 0.5. All the samples have been annealed after deposition with flow of oxygen for two hours at 800 ºC. X-ray diffraction analysis evidenced that the prepared thin films were consistent of low 2212 and high 2223 phases. Scanning electron microscopy images of the samples revealed that the addition of Ti nanoparticles into (Bi,Pb)-2223 composition would have significant effects on their grain sizes and morphologies. Electrical properties of the thin films can be associated to the modification in the holes content, the highest TC at 114.5 K was obtained for the thin film with x=0.3.