Study the Effect of Partial Substitution of Cadmium on the Structural and Electrical Properties of HgBa2ca2cu3-xCdxO8+δ Superconducting Compound

Abstract

This research prepared the compound Hg-base superconductors HgBa₂ Ca₂Cu_3-xCd_xO₈+_ with substitution of (x=CdO) with concentration x=(0, 0.1, 0.2and 0.3) by Hg through method of powder metallurgy( solid-state reaction) together temperature of sintering 800OC for 24h. The Studied improvement of structural and electrical properties for composition substations. After the x-ray scattering tests were completed, the results were analyzed to determine all cell units' configuration and lattice constants (a,b,c). The diffraction of the x-ray revealed that all samples have crystals and a tetragonal structure. The analysis of the electrical characteristics to obtain critical temperature was carried out using four-probe point devices, with the highest heating value being found when x=0.2 equals 119.2K for HgBa₂Ca₂Cu_3-XCd_xO_8+ compound, all other samples have the highest 1223 main phases compared to the other phases.