| 摘要 |
PROBLEM TO BE SOLVED: To obtain a rare earth element oxide superconductive material having a high critical electric current density by inserting a bulk member represented by an oriented REBa2 Cu3 Ox (RE is a rare earth element) as a billet into a metal such as silver, gold or palladium, sealing the metal, rolling the sealed billet and subsequently sintering the rolled product. SOLUTION: A bulk body 1 represented by an oriented REBa2 Cu3 Ox (RE is one or more kinds of elements selected from the group consisting of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu is inserted as a billet into a sealing metal 2 comprising silver, gold, palladium or an alloy based on the metals, and subsequently weld-sealed at sites 3. The sealed product is rolled in the drafting direction parallel to the (c) axial direction of the bulk body 1, and subsequently sintered at a temperature ranging from 85% of the peritectic temperature of the bulk body 1 to a temperature just below the peritectic temperature to produce the plate or wire of the rare earth element oxide superconductive material. |
