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1. 发明申请

US20070213227A1 Process for the preparation of high temperature superconducting bulk current leads with improved properties and superconducting bulk current leads made thereby 有权
标题翻译：用于制备高温超导体电流引线的方法，具有改进的性能和由此制成的超导体电流引线
公开(公告)号：US20070213227A1
公开(公告)日：2007-09-13
申请号：US11506967
申请日：2006-08-17
申请人： Shrikant Ekbote , Gursharan Padam , Narinder Arora , Mukul Sharma , Ramesh Sethi , Mrinal Banerjee
发明人： Shrikant Ekbote , Gursharan Padam , Narinder Arora , Mukul Sharma , Ramesh Sethi , Mrinal Banerjee
IPC分类号： H01L39/24
CPC分类号： H01L39/2419 , H01L39/143
摘要： The present invention provides a process for the preparation of high temperature superconducting (HTS) bulk current leads capable of supplying a continuous current of more than 200 A at 77K, at least for 2 to 4 hours without any substantial heat load to cryogen free cryocooler and other superconducting magnet systems. The superconducting bulk current leads with improved properties are prepared from an improved high temperature superconducting (HTS) bismuth based cuperate [(Bi, Pb)2 Sr2Ca2Cu3O10+x] material in tube and rod shape with both end metallic contacts. To produce such a lead, the process included modification of the superconducting material with homogeneous silver addition, a step of initial sintering in a large size tube followed by crushing into powder, a step of shaping the said initially sintered tube powder into tubes and rods of different size, a step of formation of metallic contacts by a perforated silver foil sandwiched between two metal spray deposited silver at both end parts of the said tubes and rods followed by a final step of co-sintering. In the current leads obtained according to these aspects, it is possible to stably carry current more than 200 A required for energizing superconducting magnet systems.
摘要翻译：本发明提供了一种制备高温超导（HTS）体电流引线的方法，其能够在77K下至少提供大于200A的连续电流，至少2至4小时，而对无冷冻剂的低温冷却器没有任何实质的热负荷，其他超导磁体系统。具有改进性能的超导体电流引线由改进的高温超导（HTS）铋基铜酸盐[（Bi，Pb）2 Sr 2 2 Ca 2 具有两端金属触点的管状和棒状的材料为3×10 ^ 10 + x 为了制造这种铅，该方法包括用均匀的银添加改性超导材料，在大尺寸管中初始烧结，然后粉碎成粉末的步骤，将所述初始烧结的管粉末成形为管和棒的步骤不同尺寸，通过夹在两个金属喷涂沉积银之间的穿孔银箔形成金属接触的步骤，两个金属喷涂沉积的银在所述管和棒的两端部分之后是最后的共烧结步骤。在根据这些方面获得的电流引线中，可以稳定地承载超导磁体系统激励所需的电流大于200A。

2. 发明申请

US20070281862A1 Process For The Preparation Of Low Contact Resistant Contact On A High Transition Temperature Superconductors 有权
标题翻译：高转换温度超导体制备低接触电阻接触的工艺
公开(公告)号：US20070281862A1
公开(公告)日：2007-12-06
申请号：US10594018
申请日：2004-03-31
申请人： Shrikant Ekbote , Gursharan Padam , Narendra Arora , Mukul Sharma , Rames Sethi , Mrinal Banerjee
发明人： Shrikant Ekbote , Gursharan Padam , Narendra Arora , Mukul Sharma , Rames Sethi , Mrinal Banerjee
IPC分类号： H01R4/68 , H01L39/24
CPC分类号： H01L39/2474 , Y10S505/706 , Y10T29/49014 , Y10T29/49204
摘要： Disclosed is a three layer process for making contact points to a high transition temperature superconductor (HTSC), particularly to (Bi,Pb)2 Sr2Ca2 Cu3O19+1 with and without silver in the superconductor. The contact structure is a three layer configuration with a perforated silver foil (3) sandwiched between two metal spray gun deposited silver layers (2,5) and subsequent heat treatment in air. The contact has been made on tubes and rods (1). The silver contacts are capable of carrying a continuous current of 200 Amps without adding any substantial heat load to the cryogen used to cool the HTSC. The contact resistance at 4.2 K is in the range of 1.5×10 (hoch−8) to 8.5″ 10 (hoch−8)OHM in zero applied filed.
摘要翻译：公开了用于制造与高转变温度超导体（HTSC），特别是（Bi，Pb）2 Sr 2 Ca 2的接触点的三层工艺，在超导体中具有和不具有银的/ 3/3> 19 + 1 。接触结构是三层结构，其中穿过的银箔（3）夹在两个金属喷枪沉积的银层（2,5）之间，随后在空气中进行热处理。在管和杆（1）上进行接触。银触点能够承载200安培的连续电流，而不会对用于冷却HTSC的冷冻剂增加任何实质的热负荷。 4.2K时的接触电阻在1.5×10（ch ch>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> to>>）>）>）零申请。

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