Synthesis and superconductivity of (Ag)x/CuTl-1223 composites
作者： Abdul Jabbar , Irfan Qasim , M. Mumtaz , K. Nadeem
DOI: 10.1016/J.PNSC.2015.06.001
关键词:
摘要: Abstract Series of (Ag) x /(Cu 0.5 Tl Ba 2 Ca Cu 3 O 10-δ ) {(Ag) /CuTl-1223} nano-superconductor composites were synthesized with different concentrations (i.e. =0~4.0 wt%) silver nanoparticles. Low anisotropic CuTl-1223 superconducting matrix was prepared by solid-state reaction and Ag nanoparticles a sol–gel method separately. The required /CuTl-1223 composition obtained the inclusion in matrix. Structural, morphological, compositional transport properties these investigated detail x-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-rays (EDX) spectroscopy four-point probe electrical resistivity ( ρ measurements. enhanced without affecting tetragonal structure host improvement is most likely due to inter-grains coupling increased volume fraction after addition metallic at inter-crystallite sites samples. presence grain-boundaries may increase number flux pinning centers, which present form weak-links pure
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