AI Article Synopsis
- There are many potential uses for superconducting tapes made from YBCO films on metallic substrates, particularly due to their ability to carry high current densities in strong magnetic fields.
- A significant focus has been on understanding and improving magnetic-flux pinning mechanisms, which are crucial for maintaining these high current densities.
- Recent advancements have led to a scalable method that can increase magnetic-field current densities by 1.5 to 5 times in high-quality YBCO-tape conductors, making them more commercially viable.
Article Abstract
There are numerous potential applications for superconducting tapes based on YBa(2)Cu(3)O(7-x) (YBCO) films coated onto metallic substrates. A long-established goal of more than 15 years has been to understand the magnetic-flux pinning mechanisms that allow films to maintain high current densities out to high magnetic fields. In fact, films carry one to two orders of magnitude higher current densities than any other form of the material. For this reason, the idea of further improving pinning has received little attention. Now that commercialization of YBCO-tape conductors is much closer, an important goal for both better performance and lower fabrication costs is to achieve enhanced pinning in a practical way. In this work, we demonstrate a simple and industrially scaleable route that yields a 1.5-5-fold improvement in the in-magnetic-field current densities of conductors that are already of high quality.
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| http://dx.doi.org/10.1038/nmat1156 | DOI Listing |
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