【摘要】 对由高温超导体微块嵌于金属基中而形成的复合体的临界电流密度 J_c 进行了估算.结果表明,J_c 与金属基的电导率、超导体的非等轴性以及复合体中超导体的含量成正比.在判据 1μv/cm 和金属基电阻率为 10^-7Ωcm 的条件下,77K 和零场下的 J_c 值可超过10⁴A/cm².指出了复合体其他的优点.更多还原

【Abstract】 The critical current density Jc for high temperature superconductor composite block embedded in metal matrix is estimated.The calculation shows that the Jc is proportional to the metal conductivity,the geometric anisotropy of the high temperature superconductor and the space of the block.With the criterion being 1μv/cm and the resistivity being 10-8cm,the Jc is higher than 104A/cm2 at 77 K and zero applied field.The additional advantages of the composite are discussed as well.更多还原