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    • 4. 发明授权
    • High-temperature superconducting solid bodies and process for producing
them
    • 高温超导固体及其制备方法
    • US5830829A
    • 1998-11-03
    • US545775
    • 1995-11-27
    • Markus BrandGunter BrommerSteffen ElschnerStephan GaussWolf Assmus
    • Markus BrandGunter BrommerSteffen ElschnerStephan GaussWolf Assmus
    • C01G1/00C01G3/00C04B35/45C04B35/64C30B29/22H01L39/12H01L39/24C30B23/06
    • C04B35/64C04B35/4508H01L39/2419Y10S505/729
    • The invention relates to a process for producing textured high-temperature superconducting solid shaped parts, which comprises solid shaped parts made of oxide-ceramic superconducting material of a phase mixture of the substance class YBCO first being molded, pressed and sintered, a zonewise thermal treatment then being carried out along their longitudinal axis. Heating is first carried out, in a first zone, to a temperature in the range of from 50 to 200 K below the peritectic melting temperature of the phase mixture initially present in the shaped part, the temperature then is raised, in a second zone having a temperature gradient in the range of from 10 to 250 K/cm, then, in a third zone, a temperature of up to 50 K above the peritectic melting temperature of the phase mixture initially present in the shaped part is maintained, cooling then being carried out, in a fourth zone having a temperature gradient in the range of from 10 to 250 K/cm. Finally, in yet a fifth zone, a temperature in the range of from 50 to 200 K below the peritectic melting temperature of the phase mixture initially present in the shaped part is maintained. According to the invention, the zones are moved along in the longitudinal direction at a speed in the range of from 1 to 10 mm/h.
    • PCT No.PCT / EP94 / 02206 Sec。 371日期:1995年11月27日 102(e)日期1995年11月27日PCT 1994年7月6日PCT公布。 公开号WO95 / 02717 日期1995年1月26日本发明涉及一种生产纹理高温超导固体成形部件的方法,该方法包括由氧化物 - 陶瓷超导材料制成的固体成形部件,该物质类别为YBCO的相混合物首先被模制,压制和烧结 然后沿着其纵向轴线进行了一个zonewise热处理。 首先在第一区域中进行加热,其温度在最初存在于成型部件中的相混合物的包晶熔化温度以下的温度范围内为50〜200K,然后在具有 温度梯度在10至250K / cm的范围内,则在第三区域中,保持最初存在于成型部件中的相混合物的包晶熔化温度高于50K的温度,然后冷却 在具有10至250K / cm 2的温度梯度的第四区域中进行。 最后,在第五区域中,保持最初存在于成形部件中的相混合物的包晶熔融温度以下50〜200K的范围内的温度。 根据本发明,这些区域沿着纵向方向以1至10mm / h的速度移动。