GB/T 28871-2012
ActiveCritical current measurement-DC critical current of Nb3Sn composite superconductors
铌三锡（Nb3Sn）复合超导体的直流临界电流测量
Application Summary AI generated
This standard specifies the test method for measuring the direct-current (DC) critical current of Nb3Sn composite superconductors, which are used in high-field magnet applications such as particle accelerators and fusion reactors. It defines the measurement conditions, sample preparation, and data analysis procedures to ensure consistent characterization of the superconductor's performance at cryogenic temperatures. The standard is applied in materials testing laboratories and by manufacturers to qualify Nb3Sn wires and tapes for use in large-scale superconducting systems.
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