Copper-stabilized second generation high-temperature superconductor (HTS) coated conductors were modified to enhance their normal zone propagation velocity (NZPV). Experimental results, supported by numerical simulations, indicate that adding copper on the substrate side instead of adding it on the HTS side increases the NZPV by a factor of 2–3. Furthermore, a novel tape architecture, called hybrid-current flow diverter (CFD), was investigated. This hybrid-CFD tape was designed with the goal of having a very long current transfer length, which is the key to enhance the NZPV. Results show that it is possible to fabricate an HTS tape with double stabilizer thickness in comparison to a bare tape, while accelerating the NZPV by a factor of three. With the same approach, a ten-fold increase of the NZPV can be expected for a tape with a 40 m thick copper-stabilizer.

修改了铜稳定的第二代高温超导体（HTS）涂层导体，以提高其正常区域传播速度（NZPV）。由数值模拟支持的实验结果表明，在基板侧添加铜而不是在HTS侧添加铜会使NZPV增加2-3倍。此外，还研究了一种称为混合电流分流器（CFD）的新型磁带体系结构。设计这种混合CFD胶带的目的是具有非常长的电流传输长度，这是增强NZPV的关键。结果表明，与裸露的胶带相比，可以制造出具有两倍稳定剂厚度的HTS胶带，同时将NZPV加快了三倍。使用相同的方法，可以将40倍的磁带的NZPV提高十倍。米厚的铜稳定剂。