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    • 4. 发明申请
    • Substrate for Superconducting Wire and Fabrication Method Thereof and Superconducting Wire
    • 超导线基板及其制造方法及超导线
    • US20080274896A1
    • 2008-11-06
    • US11913829
    • 2005-09-05
    • Bong-Ki JiByoung-Kwang Lee
    • Bong-Ki JiByoung-Kwang Lee
    • H01L39/00H01L39/24
    • H01L39/2461H01L39/2454
    • A substrate for a superconducting wire is made of Ni or Ni alloy, with a ratio of cube texture of 95% or above constant in a width direction of a substrate body, a ratio of low-angle (15 or less) grain boundary of 99% or above regularly distributed in the width direction, a thickness of 40-150 μm, an average grain size of 100 μm or less, and a surface roughness of RMS 50 nm or less. A method for fabricating the substrate includes rolling a Ni or Ni-alloy rod with a rectangular section; and thermally treating the rolled rod, the rolling step having a reduction ratio of 5 to 15% at each rolling, the rod being moved between rollers for the rolling process at a linear velocity of 100 m/min or less, the thermally treating process being conducted by heating above a recrystallization temperature with flowing an inert gas including hydrogen gas.
    • 超导线基材由Ni或Ni合金制成,立方体结构在基体宽度方向上的比例为95%以上,低角度(15以下)的晶界比为99 在宽度方向上规则分布的%以上,厚度为40〜150μm,平均粒径为100μm以下,RMS为50nm以下的表面粗糙度。 制造基板的方法包括:轧制具有矩形截面的Ni或Ni合金棒; 并且对轧制棒进行热处理,轧制步骤在每次轧制时具有5至15%的压下率,该棒在线速度为100m / min或更小的轧制过程中在辊之间移动,热处理工艺为 通过使包含氢气的惰性气体流动,在再结晶温度以上进行加热。