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Addition effects of nanoscale NiO on microstructure and superconducting properties of MgB2
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 Title & Authors
Addition effects of nanoscale NiO on microstructure and superconducting properties of MgB2
Ranot, Mahipal; Jang, S.H.; Oh, Y.S.; Shinde, K.P.; Kang, S.H.; Chung, K.C.;
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 Abstract
We have investigated the addition effect of NiO magnetic nanoparticles on crystal structure, microstructure as well as superconducting properties of . NiO-added samples were prepared by the solid-state reaction method. The superconducting transition temperature () of 37.91 K was obtained for pure , and was found to decrease systematically on increasing the addition level of NiO. X-ray diffraction (XRD) analysis revealed that no substitution of Ni for Mg in the lattice of was occurred. The microstructural analysis shows that the pure sample consists of plate shape grains, and the grains get refined to smaller size with the addition of NiO nanoparticles. At 5 K, high values of critical current density () were obtained for small amount NiO-added samples as compared to pure sample. The enhancement in could be attributed to the refinement of grains which leads to high density of grain boundaries in NiO-added samples.
 Keywords
;nanoscale NiO;superconducting properties;
 Language
English
 Cited by
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Solution-processed nanometers thick amorphous carbon-coated boron as an efficient precursor for high-field performance of MgB 2, Journal of Alloys and Compounds, 2017, 724, 507  crossref(new windwow)
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