Reduction of gas bubbles and improved critical current density in Bi-2212 round wire by swaging

Jianyi Jiang, Hanping Miao, Yibing Huang +8

Bi-2212 round wire is made by the powder-in-tube technique. An unavoidable property of powder-in-tube conductors is that there is about 30% void space in the as-drawn wire. We have…