Eliminates sausage knots and core breakage
The hot drawing process achieves coordinated deformation between powder and metals, yielding a uniform and dense superconducting phase and resolving interface defects of conventional cold processing.
Hou, Hongli · Le, Hu · Zhang, Shengnan · Wang, Qingyang · Dan, Xi · Zhenyu, Chen · Liu, Jixing · Li, Jianfeng · Zhang, Pingxiang · Zhao, Guoqun
Journal of Materials Research and Technology 2026
Critical current density of 1.21 × 10⁶ A/cm² at 4.2 K and 2 T
Completely eliminate "sausage knots" and central Mg rod breakage
Straight interface and uniform layers achieved at 300 °C drawing