Mechanical Properties of $\hbox{REBa}_{2}\hbox{Cu}_{3} \hbox{O}_{7 - \delta}$ Superconductor With RE Obtained From Xenotime Mineral

Mechanical Properties of Melt Textured Y1-xPrxBa2Cu3O7-δ Superconductor (x = 0.00 and 0.05)

“…The elastic module of the pure YBa 2 Cu 3 O 7-δ sample measured at both planes agrees with literature data 24 . In REBa 2 Cu 3 O 7-d superconductor single crystals, Foerster et al 24…”

“…Studying the indentation hardness H of REBa 2 Cu 3 O 7-δ , researchers obtained values of 5 + 2 GPa for polycrystalline, 8.0 + 0.5 for single crystals and 9.0 + 0.5 GPa for both ab-and a(b)c-plane in melt-textured superconductor bulks 24 . The RE corresponds to a natural mixture of rare earth elements (Y -Yb -Dy -Ho -Tm -Lu -Gd -Tb -Sm -Ce -Eu -Nd) extracted from the xenotime mineral.…”

Effect of Ultra-sonicated Y2BaCuO5 on Top-Seeded Melt Growth YBa2Cu3Oy Bulk Superconductor

“…4 a-e, respectively. Fully fourfold growth was seen without any spontaneous nucleation To examine the texturing information and phase purity of melt grown bulk Y123, we performed X-ray diffraction on Figure 5 shows all (00 l) peaks corresponding to the orthorhombic ab planes, which indicates a proper texturing and pure single grain nature of Y123 formed [21]. The small pieces with dimensions of about 1.5 × 1.5 × 0.5 mm 3 were cut 2 mm under seed crystal along c-axis from Y0, Y40, and Y80 samples.…”

Fe-Doping Effect on the Bi3Ni Superconductor Microstructure

“…Figure 2(b) shows in higher magnification several microcracks that are aligned approximately parallel to a horizontal direction in the photograph. The origin of these cracks may be due to thermal expansion anisotropy as observed in REBa 2 Cu 3 O 7-δ (RE = rare earth) 15 or due to weak bonding between the laminar grains as observed in iron-based superconductors 16 . If the same image of the polycrystalline sample with x = 0.00 is observed by optical microscopy, two regions are also distinguished in the upper inset.…”