| 摘要 |
The invention relates to engineering, particularly to high-conducting materials and method for treatment thereof. Proposed is a method for transiting a metal conductor into a superconducting state, the method comprising plastically deforming the conductor by winding a wire into a single spiral or by twisting wires into a spiral, wherein a dislocation density in the conductor is brought up to a value of not less than 1.10 8 CM -2 by the deformation, and a further increase in the dislocation density in the conductor is carried out by heat treatment up to a value of 1-10 12- 1.10 15 cm 2. The metal conductor can be pre-twisted around its longitudinal axis, followed by winding into a single spiral. The twisting of two wires into a spiral is carried out at an inclination angle of spiral turns to the longitudinal axis of the spiral in the range of 20 - 58°. Each of the two wires can be pre-twisted around its longitudinal axis. It should be noted that the heat treatment is carried out by any known techniques at a temperature less than a melting temperature of the metal. Said heat treatment can be carried out simultaneously with passage of electric current through the spiral. The technical result is achievement of a dislocation density in a metal conductor which is required for transition thereof into a superconducting state and which cannot be achieved by plastic deformation.
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