Experimental Studies of the Effective Sintering Temperature on Electrical and Structural Properties of HgBa₂Ca₂Cu₃O_8+δ Compound

Abstract

: The HgBa2Ca2Cu3O8+δ specimens are manufactured via solid status interaction process at various temperature of sintering at ( 1073, 1123 and 1173 ) K. All the specimens in the immediately studied were submited to common constructional description by X - radiation deviation. The X - radiation deviation data combined from different samples agree with ( Hg - 1223 ) stages, then the investigations indicated that tetragonal construct for all specimens with an increasing in the dimension c to 15.87 A and reducing the mass density (ρM ) to 1.481 g / cm3 at 1173 K. The four - sensor procedure was achieved to detection the transition temperature ( Ts ), then it raised from 116 K to 121 K with increasing sintering temperature from 1073 K to 1123 K and decreased to 109 K at 1173 K.

Synthesis and Analysis of the Impact of Partial Mercury Replacement with Lead on the Structural and Electrical Properties of the Hg1-xPbxBa2Ca2Cu3O8+δ Superconductor

“…The volume fractional drop from 73 to 71 % when the amount of lead in the samples grew from x = 0.0 to 0.05, which is another factor contributing to the rise in critical temperatures brought on by the preference for the high phase 1223 over the other phases 1212 and 1201. 20,21) The ratio of parameters c/a was calculated and recorded in Table 1, where it is generally observed that this ratio increases with increasing lead concentration.…”