Effect of the partial substitution of lanthanum element instead of the yttrium element on structural and electrical properties of YBa2Cu3O6+δ superconducting compound

The major problems that facing sustainability is the heat production with electricity transmission. The research and engineering communities hope that superconductive materials will be employed in the power transmission, without any losses along the way. Solid-state reaction is a one of the methods for preparing compound samples. This method was used to prepare the nominal chemical formula Y2Ba4Cu7O15. The calcining of the mixed powder at constant temperature of 800C0, followed by compressing the mixed, under (7, 8, 9) tons/cm2 pressures, as pallets shape with diameter 1.5 cm and thickness (0.2-0.3) cm inducing. The prepared samples were encounter many sintering processes through constant temperature. The sintering processes were done in the furnace by rising and cooling temperature with Oxygen rate 0.5 L/min. The samples were measured electrically to determine the resistivity changes in different temperatures (77–300) K, using four-probe technique. The results for the samples A, B and C shows the onset superconducting transition temperatures (Tc (onset)) at 88 K, 93 K, and 99 K respectively. The XRD data illustrated a polycrystalline structure for all samples. The transition temperature, oxygen content (δ) and the lattice parameter increase with increasing the pressure.

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The Effective of Pressure on the Physical Proprieties of Y2Ba4Cu7O15 Superconductor

Jasim

Taha

Shaban

2022

MSF

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Effect of the partial substitution of lanthanum element instead of the yttrium element on structural and electrical properties of YBa2Cu3O6+δ superconducting compound

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The Effective of Pressure on the Physical Proprieties of Y<sub>2</sub>Ba<sub>4</sub>Cu<sub>7</sub>O<sub>15</sub> Superconductor

The Effective of Pressure on the Physical Proprieties of Y<sub>2</sub>Ba<sub>4</sub>Cu<sub>7</sub>O<sub>15</sub> Superconductor

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