Cold Pressing Procedure Influence on Superconducting Properties of Multi-filamentary Bi2223/Ag Tape
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摘要: 在Bi2223/Ag超導多芯帶材的制備過程中,采用了熱處理—冷壓—熱處理的工藝,取壓力、壓下速率、摩擦系數和來料作為待研究的冷壓工藝參數,以帶材的臨界電流Ic值為評價指標,用正交法設計實驗方案,結果表明:摩擦系數對帶材臨界電流Ic值的影響高度顯著,壓力和來料對帶材Ic值的影響顯著,壓下速率對帶材Ic值的影響程度量小.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 Ic valve is very notable, the effect of pressure and feed is inferior, and the influence of pressing speed on the Ic valve is least.
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Key words:
- superconduction /
- multi-filamentary tape /
- cold pressing /
- orthogonality test
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