High-$J_{\rm c}$ YBCO Coated Conductors Based on IBAD-TiN Using Stainless Steel Substrates

Gärtner, Reinhold; Hühne, Ruben; Engelmann, Jan; Hänisch, Jens; Kaltofen, R.; Oswald, Steffen; Schultz, L.; Holzäpfel, B.

doi:10.1109/tasc.2010.2080657

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…The attractive potential of an additional IBAD alternative, TiN layers, has been recently demonstrated (figure 10) using buffers and YBCO layers grown by PLD [31,32] but it is still to be investigated if it can be combined with the SDP process. In the scope of EUROTAPES this compatibility will be investigated because it appears as a new appealing opportunity to reduce deposition cost due to the small thickness required to achieve highly textured films in this case, similarly to MgO IBAD layers [23,33].…”

Section: Metallic Substrates and Buffer Layersmentioning

confidence: 99%

Coated conductors for power applications: materials challenges

Obradors

Puig

2014

Supercond. Sci. Technol.

347

245

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This manuscript reports on the recent progress and the remaining materials challenges in the development of coated conductors (CCs) for power applications and magnets, with a particular emphasis on the different initiatives being active at present in Europe. We first summarize the scientific and technological scope where CCs have been raised as a complex technology product and then we show that there exists still much room for performance improvement. The objectives and CC architectures being explored in the scope of the European project EUROTAPES are widely described and their potential in generating novel breakthroughs emphasized. The overall goal of this project is to create synergy among academic and industrial partners to go well beyond the state of the art in several scientific issues related to CCs' enhanced performances and to develop nanoengineered CCs with reduced costs, using high throughput manufacturing processes which incorporate quality control tools and so lead to higher yields. Three general application targets are considered which will require different conductor architectures and performances and so the strategy is to combine vacuum and chemical solution deposition approaches to achieve the targeted goals. A few examples of such approaches are described related to defining new conductor architectures and shapes, as well as vortex pinning enhancement through novel paths towards nanostructure generation. Particular emphasis is made on solution chemistry approaches. We also describe the efforts being made in transforming the CCs into assembled conductors and cables which achieve appealing mechanical and electromagnetic performances for power systems. Finally, we briefly mention some outstanding superconducting power application projects being active at present, in Europe and worldwide, to exemplify the strong advances in reaching the demands to integrate them in a new electrical engineering paradigm.

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Section: Metallic Substrates and Buffer Layersmentioning

confidence: 99%

Coated conductors for power applications: materials challenges

Obradors

Puig

2014

Supercond. Sci. Technol.

347

245

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“…HTS tapes allow much higher current than conventional copper wires, and critical current densities of J c = 1.1 × 10 5 A/cm 2 (77 K, self-field) and J c = 2.9 × 10 6 A/cm 2 (77 K, self-field) can be realized for Ag clad Bi 2 Sr 2 Ca 2 Cu 3 O 10+x (Bi-2223/Ag) [28] and YBa 2 Cu 3 O 7−x (YBCO)-coated conductor [29], respectively. Consequently, HTSLSM using HTS coil magnets as its secondary or HTSLIM using HTS coil windings as its primary can achieve better performance than conventional linear motors.…”

Section: B Hts Function Modelsmentioning

confidence: 99%

High-Temperature Superconducting Linear Synchronous Motors Integrated With HTS Magnetic Levitation Components

Jin

Zheng

Guo

et al. 2012

IEEE Trans. Appl. Supercond.

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High-temperature superconductors (HTSs) including HTS bulks and tapes have potential applications in linear motion drive and magnetic levitation/suspension systems generating substantial advantages over conventional ones. When an HTS linear motor is integrated with an HTS magnetic suspension subsystem, it can inherit both merits of HTS linear motion drive and HTS magnetic suspension simultaneously and can be applied into various fields, such as the maglev and electromagnetic aircraft launch systems (EMALSs). Based on different HTS aspects and arrangements, three modes of HTS linear synchronous motor (HTSLSM) integrated with HTS magnetic suspension subsystems have been proposed in this paper. To verify the modes for the design of a practical HTSLSM, the structural features of these systems are described, the magnetization characteristics to obtain HTS bulk magnets, the trapped-field attenuation characteristics of the HTS bulk magnet exposed to external traveling field, and the magnetic field distribution characteristics for different permanent-magnet guideways have been studied with experimental verification. Based on the study, a demonstration prototype of a single-sided HTSLSM integrated with HTS magnetic suspension subsystems has been developed. Its performance and thrust characteristics have been obtained by experimental measurements and compared with theoretical results. With regard to practical applications, two modes of double-sided HTSLSM integrated with HTS magnetic suspension subsystems have been designed for the maglev and EMALS, respectively, and then, the 2-D finiteelement-analysis models for the HTSLSMs were built to analyze their performance characteristics. The comprehensive simulations and experimental results constitute a framework for the structural and electromagnetic design of the HTSLSM integrated with HTS magnetic suspension for practical applications.

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