Influence of Rare-Earth (Doped) on Low-Density Bi1.6Pb0.4Sr2Ca1.9RE0.1Cu3Oδ (RE=Nd, Er) Superconductors via Co-Precipitation Method

H. Azhan; I.N. Syuhaida; K. Azman; C.M.N. Azura; M. Robaiah; S. Akmal Syamsyir; Mohd Mustaqim Rosli

doi:10.4028/www.scientific.net/MSF.846.574

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HomeMaterials Science ForumMaterials Science Forum Vol. 846Influence of Rare-Earth (Doped) on Low-Density...

Influence of Rare-Earth (Doped) on Low-Density Bi_1.6Pb_0.4Sr₂Ca_1.9RE_0.1Cu₃O_δ(RE=Nd, Er) Superconductors via Co-Precipitation Method

Abstract:

Effect of Ca doped by rare-earth elements, Nd and Er (x=0.10) on the structural and transport properties of low density Bi_1.6Pb_0.4Sr₂Ca₁_,9RE_0.1Cu₃O_δ (RE=Nd,Er) samples have been investigated. The samples have been prepared via co-precipitation (COP) method from precipitate of saturated solutions of metal acetates, iso-propanol solution and oxalic acid. The metal oxalates powder was subjected to thermal treatment of 24 hours calcination at 845oC and mixed with 0.10 g sucrose C₁₂H₂₂O₁₁which is used as supplementary filler. The pelletized powder was heated for 2 hours at 400 oC and sintered for at 850oC for 48 hours. All samples show a single step transition in the R-T curves. The critical current density (J_c) and transition temperature (T_c _zero) for both Nd and Er doped with x = 0.10 were found to be lower than standard samples. T_c _zero obtained varies between 98 K and 66 K. XRD data showed the decrease of volume fraction for the Bi-2223 phase and increase of the volume fraction Bi-2212 phase with the doping of Nd and Er.

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Materials Science Forum (Volume 846)

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574-578

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https://doi.org/10.4028/www.scientific.net/MSF.846.574

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March 2016

Authors:

H. Azhan*, I.N. Syuhaida, K. Azman, C.M.N. Azura, M. Robaiah, S. Akmal Syamsyir, Mohd Mustaqim Rosli

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High-Tc, Low Density, Phase Formation, Rare-Earth Metal, Wet Chemical Analysis

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