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Sergey Lee1

1, SuperOx Japan, Sagamihara, , Japan

Since the discovery of high temperature superconductivity (HTS) the most advanced materials of top performance in this field are so-called superconducting tapes of the second generation (2G-HTS) – the new class of 2D nanomaterials consisting of several multilayers with precisely controlled chemical composition, structure and grain orientation within the scale of hundreds meters length. Manufacturing of long-length 2G-HTS tapes is extremely challenging from the materials point of view. Combination of most advanced sputtering techniques including ion-beam assisted deposition (IBAD) and pulsed laser deposition (PLD) methods has proved to be one of the most reliable and promising technique.
At present several companies including Fujikura, Bruker, Shanghai Superconductors and SuperOx routinely produce tens of kilometers of high performance 2G HTS tapes, however further prospects for up-scaling IBAD/PLD approach towards manufacturing of hundreds and thousands of kilometers of tapes is not clear yet. It depends on the several factors including overall situation on the superconducting market, which closely related with the price of cooling equipment and superconducting materials. In this presentation I am are considering IBAD/PLD upscaling from the viewpoint of recent progress in sputtering and laser technologies and the latest results in 2G wire production and designing of deposition equipment made in past 5 years by our company.
Since 2012 SuperOx group produced and delivered several tens of kilometers of superconducting tapes with high degree of customization for R&D and commercial projects worldwide. I will give a brief overview of main results obtained during past few years since the establishment of SuperOx Japan and describe our company strategy and vision on future development of 2G HTS wires production and applications.
In 2016 we made a substantial progress in up-scaling of our production and installation of independent new high-throughput equipment in Japan and Russia. Currently SuperOx activity for upgrading of manufacturing facilities aimed to increase the production throughput and yield and to improve the performance of 2G HTS wires with a wider range of customization of our product tapes. Based on our recent cost analysis model I will discuss the potential pathways to reduce the final price of our wires, which based on the magnetron-IBAD-PLD production scheme and discuss the main problems and obstacles of this approach in comparison with other techniques.
SuperOx involved in several R&D and commercial projects including development of advanced superconducting fault current limiters, cables, current leads, induction heaters, motors etc. In conclusion, I will present a brief overview of our ongoing and prospective projects aimed on the development of new materials, wire architectures, construction of pilot scale devices and electrical equipment.

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