CAJ | 학술논문

测量了高温超导导线Bi-2223/Ag的临界电流值与外加磁场的依赖性关系。实验结果表明：超导线材的临界电流不仅与磁场大小有关，而且还与外磁场的方向有关。外磁场越大，临界电流值越小；Bi-2223/A g呈扁带状，临界电流对磁场的依赖性呈现各向异性。该实验与高温超导材料临界温度测量实验结合为高温超导电性能综合测试实验，为学生自主研究提供了拓展空间。
측량료고온초도도선Bi-2223/Ag적림계전류치여외가자장적의뢰성관계。실험결과표명：초도선재적림계전류불부여자장대소유관，이차환여외자장적방향유관。외자장월대，림계전류치월소；Bi-2223/A g정편대상，림계전류대자장적의뢰성정현각향이성。해실험여고온초도재료림계온도측량실험결합위고온초도전성능종합측시실험，위학생자주연구제공료탁전공간。
The dependence of critical current on magnetic field in high-temperature superconductor Bi-2223/Ag was measured .The experimental results indicated that the critical current of Bi-2223/Ag wire depended on both magnitude and orientation of the applied magnetic field .This comprehensive testing experiment was combined with the critical temperature test of high-temperature superconduc-tor to make more space for students to explore .