冷压对Bi2223/Ag多芯带材超导性能的影响

Cold Pressing Procedure Influence on Superconducting Properties of Multi-filamentary Bi2223/Ag Tape

摘要: 在Bi2223/Ag超导多芯带材的制备过程中，采用了热处理—冷压—热处理的工艺，取压力、压下速率、摩擦系数和来料作为待研究的冷压工艺参数，以带材的临界电流I_c值为评价指标，用正交法设计实验方案，结果表明：摩擦系数对带材临界电流I_c值的影响高度显著，压力和来料对带材I_c值的影响显著，压下速率对带材Ic值的影响程度量小．

Abstract: During production of multi-filamentary Bi2223/Ag superconducting tape, annealing-cold pressing-annealing procedure is adopted. Pressure, pressing speed, friction coefficient and feed is acted as appraising target for studying, designed test projects by orthogonality. The results exhibited that influence of friction coefficient on the tape critical current I_c valve is very notable, the effect of pressure and feed is inferior, and the influence of pressing speed on the I_c valve is least.