Effect of Pressure on the Superconducting and Mechanical Properties of Bi_1.6Pb_0.4Sr_1.8Ba_0.2Ca₂Cu_2.2Ni_0.8O_10+δ System

Ghazala Y. Hermiz, Bushra A. Aljurani, Hassan A. Thabit

Physics Department, College of Science, University of Baghdad, Baghdad, Iraq..

DOI: 10.4236/ampc.2013.31007                

Abstract

Solid state reaction method was used to prepare samples of Bi_1.6Pb_0.4Sr_1.8Ba_0.2Ca₂Cu_2.2Ni_0.8O_10+d. Superconducting and mechanical properties by Vickers microhardness measurements have been carried out to examine the effects of pressure. Electrical measurement demonstrates the best transition temperature was under 0.7 GPa. An improvement of mechanical properties was found when the pressure increases from 0.3 GPa to 0.9 GPa. On the other side an increases of the pressure to 1.1 GPa decrease in the micro hardness, Young modulus and yield strength.

Keywords

Pressure Effect; Superconductor; Mechanical Properties

Conflicts of Interest

The authors declare no conflicts of interest.

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