High performance superconducting joint for MgB2 films

Large-area high-quality MgB2 thin films were needed in many superconducting applications such as superconducting radio frequency (RF) cavities. However, fabricating large films with high quality can be difficult. Thus, a jointing method between MgB2 films can be crucial in a lot of superconducting electronic applications. In this article, we successfully fabricated superconducting joints for MgB2 films. The sol-gel of Mg(BH4)2Greek ano teleiaEt2O was used as the glue. Two types of MgB2 joints were shown in this work, a two-piece face-to-face joint, and a threepiece bridging joint. The sol-gel derived MgB2 joints have shown very good superconducting performance, with a high superconducting critical temperature (TC) of 40 K, a high critical current (IC) of 340 mA at 0 T, and very nice current capacity in magnetic fields up to 4 T.

Automated summary

In this article, superconducting joints for MgB2 films were successfully fabricated using sol-gel derived Mg(BH4)2Et2O as the glue. The two types of MgB2 joints showed excellent superconducting performance with high critical temperature (TC) of 40 K, high critical current (IC) of 340 mA at 0 T, and good current capacity in magnetic fields up to 4 T.