The Role of Cooling Condition on the Superconducting Properties of Tl<sub>2-x</sub>Hg<sub>x</sub>Sr<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>10+δ</sub>System

• 作者: Amal K. Jassim Matti N. Makadsi Maysoon F. A. Alias
• 来源期刊: 材料物理与化学进展(英文)
• 学科: 医学
• 关键词: SUPERCONDUCTOR Microstructure Properties TBCCO SYSTEM
• 年，卷（期）: 2019,（8）
• 页码范围: 133-140
• 页数: 8页
• 分类号: R73

摘要

Solid state reaction method was used to prepare high temperature superconductor with a nominal composition Tl2-xHgxSr2Ca2Cu3O10+δ (0 ≤ x ≤ 1). The effect of quenching on the superconducting properties has been investigated by preparing two sets of samples at 1133 K for 3 hrs. The superconducting properties of the samples have been examined by electrical measurements. It is found that a partial substitution for Tl by Hg increases the formation of high-Tc phase and increases its Tc. X-ray diffraction (XRD) pattern analyses have shown a tetragonal structure, and there are at least two superconducting phases.