The influence of PbF₂ doping on the electrical and mechanical properties of Bi_1.8Pb_0.4Sr₂Ca_2.1Cu_3.2O_10+δ superconducting phase was studied. (PbF₂)_x Bi_1.8Pb_0.4Sr₂Ca_2.1Cu_3.2O_10+δ samples were prepared by the solid-state reaction method. The PbF₂ content 'x' was varied from 0.0 to 0.3 of the sample’s total mass. The characterization of the prepared samples was established by X-ray powder diffraction (XRD), scanning electron microscope (SEM) and Proton Induced Gamma ray Emission (PIGE). Moreover, the electrical resistivity 'ρ(T)' and the transport current density 'J' measurements were carried out via four-probe technique. Phase examination by XRD indicated that the PbF₂ doping enhanced the (Bi, Pb) -2223 phase formation up to x = 0.10. On the other hand, the high concentrations of PbF₂ retarded the phase formation. Granular investigation, from scanning electron microscope, showed that the grain size was increased as x increased from 0.05 to 0.20 with more grain orientation and inter-coupling between superconducting grains. The results of electrical and mechanical measurements showed that the superconducting transition temperature (T_c), the transport critical current density (J_c) and the Vickers microhardness H_v were found to have optimal value at x = 0.1.

研究了PbF ₂掺杂对Bi _1.8 Pb _0.4 Sr ₂ Ca _2.1 Cu _3.2 O _{10 +δ}超导相电学和力学性能的影响。通过固相反应法制备（PbF ₂）_x Bi _1.8 Pb _0.4 Sr ₂ Ca _2.1 Cu _3.2 O _{10 +δ}样品。PbF ₂含量“ x”在样品总质量的0.0到0.3之间变化。通过X射线粉末衍射（XRD），扫描电子显微镜（SEM）和质子诱导的伽马射线发射（PIGE）建立了制备样品的表征。此外，电阻率“ρ（T）”和传输电流密度“ J”的测量是通过四探针技术进行的。通过XRD的相检查表明，PbF ₂掺杂增强了（Bi，Pb）-2223相的形成，直至x = 0.10。另一方面，高浓度的PbF ₂阻碍了相的形成。通过扫描电子显微镜进行的颗粒研究表明，晶粒尺寸随着x的增加而增加。晶粒取向和超导晶粒之间的相互耦合作用从0.05增加到0.20。电气和机械测量的结果表明，超导转变温度（T _c），传输临界电流密度（J _c）和维氏显微硬度H _v在x = 0.1时具有最佳值。